{"id":532,"date":"2019-04-29T14:26:19","date_gmt":"2019-04-29T18:26:19","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/?post_type=chapter&#038;p=532"},"modified":"2019-12-27T01:43:50","modified_gmt":"2019-12-27T06:43:50","slug":"5-7-solving-internet-game-puzzles","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/chapter\/5-7-solving-internet-game-puzzles\/","title":{"raw":"5.7 Solving Internet Game Puzzles","rendered":"5.7 Solving Internet Game Puzzles"},"content":{"raw":"[latexpage]\r\n\r\nThe internet has many of the following picture number puzzles. All are quickly and easily solved with the strategies used for solving systems of equations. What are the solutions for the following picture puzzles?\r\n\r\n<img src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_horses.jpg\" alt=\"visualizations of horses, horse shoes and cowboy boots\" width=\"265\" height=\"249\" class=\"alignnone wp-image-2668 size-full\" \/>\r\n<ol>\r\n \t<li>\\(\\begin{array}{ccccccr}\r\n\\\\ \\\\ \\\\\r\n\\text{horse}&amp;+&amp;\\text{horse}&amp;+&amp;\\text{horse}&amp;=&amp;30 \\\\\r\n\\text{horse}&amp;+&amp;\\text{two horseshoes}&amp;+&amp;\\text{two horseshoes}&amp;=&amp;18 \\\\\r\n&amp;&amp;\\text{two horseshoes}&amp;-&amp;\\text{two boots}&amp;=&amp;2 \\\\\r\n\\text{boot}&amp;+&amp;\\text{horse}&amp;\\times &amp;\\text{horseshoe}&amp;=&amp;?\r\n\\end{array}\\)<img src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_food.jpg\" alt=\"\" width=\"276\" height=\"247\" class=\"alignnone size-full wp-image-2670\" \/><\/li>\r\n \t<li>\\(\\begin{array}{ccccccr}\r\n\\\\ \\\\ \\\\\r\n\\text{bottle}&amp;+&amp;\\text{bottle}&amp;+&amp;\\text{bottle}&amp;=&amp;30 \\\\\r\n\\text{bottle}&amp;+&amp;\\text{hamburger}&amp;+&amp;\\text{hamburger}&amp;=&amp;20 \\\\\r\n\\text{hamburger}&amp;+&amp;\\text{two mugs}&amp;+&amp;\\text{two mugs}&amp;=&amp;9 \\\\\r\n\\text{hamburger}&amp;+&amp;\\text{mug}&amp;\\times&amp;\\text{bottle}&amp;=&amp;?\r\n\\end{array}\\)<\/li>\r\n \t<li>A more challenging system of equations is the four-by-four puzzle shown below. Each individual row and column are summed to the number in either row or column 5. Find the five missing numbers and place them in their correct positions.<\/li>\r\n<\/ol>\r\n<table style=\"width: 100%;height: 108px\" border=\"0\">\r\n<tbody>\r\n<tr style=\"height: 18px\">\r\n<th style=\"width: 11.5175%;height: 18px\" scope=\"col\">Rows<\/th>\r\n<th style=\"width: 16.8985%;height: 18px\" scope=\"col\">Column 1<\/th>\r\n<th style=\"width: 16.9128%;height: 18px\" scope=\"col\">Column 2<\/th>\r\n<th style=\"width: 17.8201%;height: 18px\" scope=\"col\">Column 3<\/th>\r\n<th style=\"width: 17.3011%;height: 18px\" scope=\"col\">Column 4<\/th>\r\n<th style=\"width: 19.2042%;height: 18px\" scope=\"col\">Column 5<\/th>\r\n<\/tr>\r\n<tr style=\"height: 18px\">\r\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 1<\/th>\r\n<td style=\"width: 16.8985%;height: 18px;text-align: center\">\\(a\\)<\/td>\r\n<td style=\"width: 16.9128%;height: 18px;text-align: center\">\\(2b\\)<\/td>\r\n<td style=\"width: 17.8201%;height: 18px;text-align: center\">\\(-c\\)<\/td>\r\n<td style=\"width: 17.3011%;height: 18px;text-align: center\">\\(d\\)<\/td>\r\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">?<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18px\">\r\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 2<\/th>\r\n<td style=\"width: 16.8985%;height: 18px;text-align: center\">\\(2d\\)<\/td>\r\n<td style=\"width: 16.9128%;height: 18px;text-align: center\">\\(-a\\)<\/td>\r\n<td style=\"width: 17.8201%;height: 18px;text-align: center\">\\(-2b\\)<\/td>\r\n<td style=\"width: 17.3011%;height: 18px;text-align: center\">\\(-2c\\)<\/td>\r\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">\\(-8\\)<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18px\">\r\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 3<\/th>\r\n<td style=\"width: 16.8985%;height: 18px;text-align: center\">\\(c\\)<\/td>\r\n<td style=\"width: 16.9128%;height: 18px;text-align: center\">\\(-d\\)<\/td>\r\n<td style=\"width: 17.8201%;height: 18px;text-align: center\">\\(a\\)<\/td>\r\n<td style=\"width: 17.3011%;height: 18px;text-align: center\">\\(b\\)<\/td>\r\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">?<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18px\">\r\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 4<\/th>\r\n<td style=\"width: 16.8985%;height: 18px;text-align: center\">\\(-b\\)<\/td>\r\n<td style=\"width: 16.9128%;height: 18px;text-align: center\">\\(-c\\)<\/td>\r\n<td style=\"width: 17.8201%;height: 18px;text-align: center\">\\(-d\\)<\/td>\r\n<td style=\"width: 17.3011%;height: 18px;text-align: center\">\\(2a\\)<\/td>\r\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">\\(5\\)<\/td>\r\n<\/tr>\r\n<tr style=\"height: 18px\">\r\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 5<\/th>\r\n<td style=\"width: 16.8985%;height: 18px;text-align: center\">\\(-1\\)<\/td>\r\n<td style=\"width: 16.9128%;height: 18px;text-align: center\">?<\/td>\r\n<td style=\"width: 17.8201%;height: 18px;text-align: center\">\\(3\\)<\/td>\r\n<td style=\"width: 17.3011%;height: 18px;text-align: center\">?<\/td>\r\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">?<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<a href=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/back-matter\/answer-key-5-7\/\">Answer key 5.7<\/a>","rendered":"<p>The internet has many of the following picture number puzzles. All are quickly and easily solved with the strategies used for solving systems of equations. What are the solutions for the following picture puzzles?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_horses.jpg\" alt=\"visualizations of horses, horse shoes and cowboy boots\" width=\"265\" height=\"249\" class=\"alignnone wp-image-2668 size-full\" srcset=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_horses.jpg 265w, https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_horses-65x61.jpg 65w, https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_horses-225x211.jpg 225w\" sizes=\"auto, (max-width: 265px) 100vw, 265px\" \/><\/p>\n<ol>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-851c3189d6773a8abd4c40ece3f99a9a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#98;&#101;&#103;&#105;&#110;&#123;&#97;&#114;&#114;&#97;&#121;&#125;&#123;&#99;&#99;&#99;&#99;&#99;&#99;&#114;&#125; &#92;&#92;&#32;&#92;&#92;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#104;&#111;&#114;&#115;&#101;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#104;&#111;&#114;&#115;&#101;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#104;&#111;&#114;&#115;&#101;&#125;&#38;&#61;&#38;&#51;&#48;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#104;&#111;&#114;&#115;&#101;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#116;&#119;&#111;&#32;&#104;&#111;&#114;&#115;&#101;&#115;&#104;&#111;&#101;&#115;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#116;&#119;&#111;&#32;&#104;&#111;&#114;&#115;&#101;&#115;&#104;&#111;&#101;&#115;&#125;&#38;&#61;&#38;&#49;&#56;&#32;&#92;&#92; &#38;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#116;&#119;&#111;&#32;&#104;&#111;&#114;&#115;&#101;&#115;&#104;&#111;&#101;&#115;&#125;&#38;&#45;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#116;&#119;&#111;&#32;&#98;&#111;&#111;&#116;&#115;&#125;&#38;&#61;&#38;&#50;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#98;&#111;&#111;&#116;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#104;&#111;&#114;&#115;&#101;&#125;&#38;&#92;&#116;&#105;&#109;&#101;&#115;&#32;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#104;&#111;&#114;&#115;&#101;&#115;&#104;&#111;&#101;&#125;&#38;&#61;&#38;&#63; &#92;&#101;&#110;&#100;&#123;&#97;&#114;&#114;&#97;&#121;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"81\" width=\"427\" style=\"vertical-align: -68px;\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_food.jpg\" alt=\"\" width=\"276\" height=\"247\" class=\"alignnone size-full wp-image-2670\" srcset=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_food.jpg 276w, https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_food-65x58.jpg 65w, https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/uploads\/sites\/653\/2019\/04\/chapter-5.7_food-225x201.jpg 225w\" sizes=\"auto, (max-width: 276px) 100vw, 276px\" \/><\/li>\n<li><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-6056ddd08a50aa911345e4eb30056f5a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#98;&#101;&#103;&#105;&#110;&#123;&#97;&#114;&#114;&#97;&#121;&#125;&#123;&#99;&#99;&#99;&#99;&#99;&#99;&#114;&#125; &#92;&#92;&#32;&#92;&#92;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#98;&#111;&#116;&#116;&#108;&#101;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#98;&#111;&#116;&#116;&#108;&#101;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#98;&#111;&#116;&#116;&#108;&#101;&#125;&#38;&#61;&#38;&#51;&#48;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#98;&#111;&#116;&#116;&#108;&#101;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#104;&#97;&#109;&#98;&#117;&#114;&#103;&#101;&#114;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#104;&#97;&#109;&#98;&#117;&#114;&#103;&#101;&#114;&#125;&#38;&#61;&#38;&#50;&#48;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#104;&#97;&#109;&#98;&#117;&#114;&#103;&#101;&#114;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#116;&#119;&#111;&#32;&#109;&#117;&#103;&#115;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#116;&#119;&#111;&#32;&#109;&#117;&#103;&#115;&#125;&#38;&#61;&#38;&#57;&#32;&#92;&#92; &#92;&#116;&#101;&#120;&#116;&#123;&#104;&#97;&#109;&#98;&#117;&#114;&#103;&#101;&#114;&#125;&#38;&#43;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#109;&#117;&#103;&#125;&#38;&#92;&#116;&#105;&#109;&#101;&#115;&#38;&#92;&#116;&#101;&#120;&#116;&#123;&#98;&#111;&#116;&#116;&#108;&#101;&#125;&#38;&#61;&#38;&#63; &#92;&#101;&#110;&#100;&#123;&#97;&#114;&#114;&#97;&#121;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"82\" width=\"407\" style=\"vertical-align: -69px;\" \/><\/li>\n<li>A more challenging system of equations is the four-by-four puzzle shown below. Each individual row and column are summed to the number in either row or column 5. Find the five missing numbers and place them in their correct positions.<\/li>\n<\/ol>\n<table style=\"width: 100%;height: 108px\">\n<tbody>\n<tr style=\"height: 18px\">\n<th style=\"width: 11.5175%;height: 18px\" scope=\"col\">Rows<\/th>\n<th style=\"width: 16.8985%;height: 18px\" scope=\"col\">Column 1<\/th>\n<th style=\"width: 16.9128%;height: 18px\" scope=\"col\">Column 2<\/th>\n<th style=\"width: 17.8201%;height: 18px\" scope=\"col\">Column 3<\/th>\n<th style=\"width: 17.3011%;height: 18px\" scope=\"col\">Column 4<\/th>\n<th style=\"width: 19.2042%;height: 18px\" scope=\"col\">Column 5<\/th>\n<\/tr>\n<tr style=\"height: 18px\">\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 1<\/th>\n<td style=\"width: 16.8985%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-139f9ff9acb14e208aad5c530531193c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 16.9128%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-a9b5c34092560f5e6ba743605878849e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#98;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"17\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.8201%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-50187fa9194d6bcfa824bd27833291c1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#99;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"21\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.3011%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-e20ce8e0108b2f61e02090cb26047e61_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#100;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"10\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">?<\/td>\n<\/tr>\n<tr style=\"height: 18px\">\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 2<\/th>\n<td style=\"width: 16.8985%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-ec7318fcf7ef4e00fc3a91a2a4b94e18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#100;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"19\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 16.9128%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-12b1e0bd3db5551af994ad43ff57bfc2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"22\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.8201%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-6394775da25c8fc7c8d0b329b7ee3246_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#50;&#98;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"30\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.3011%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-398aacf367e4ea364cf91b12c62b0223_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#50;&#99;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"30\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 19.2042%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-978948e4359e822fd2dd9a5d6447dd56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#56;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"22\" style=\"vertical-align: 0px;\" \/><\/td>\n<\/tr>\n<tr style=\"height: 18px\">\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 3<\/th>\n<td style=\"width: 16.8985%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-f09dda6eda72f7e6392146290800403f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#99;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"8\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 16.9128%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-51bbe583e28850788150d61d39ffcb3c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#100;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"23\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.8201%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-139f9ff9acb14e208aad5c530531193c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.3011%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-68615f88ce048c005e35fe5116ee1e9d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#98;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"8\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">?<\/td>\n<\/tr>\n<tr style=\"height: 18px\">\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 4<\/th>\n<td style=\"width: 16.8985%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-73d10f65e85190e346589b222fe94409_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#98;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"21\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 16.9128%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-50187fa9194d6bcfa824bd27833291c1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#99;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"21\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.8201%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-51bbe583e28850788150d61d39ffcb3c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#100;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"23\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.3011%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-4835a7ed5b58814ee1eec42b35768c0d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"18\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 19.2042%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-1742eca7fc8cd5582b4dc375d4afa039_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#53;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"8\" style=\"vertical-align: 0px;\" \/><\/td>\n<\/tr>\n<tr style=\"height: 18px\">\n<th style=\"width: 11.5175%;height: 18px\" scope=\"row\">Row 5<\/th>\n<td style=\"width: 16.8985%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-c635314a0c6ebb77165926216b66f947_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#45;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"21\" style=\"vertical-align: -1px;\" \/><\/td>\n<td style=\"width: 16.9128%;height: 18px;text-align: center\">?<\/td>\n<td style=\"width: 17.8201%;height: 18px;text-align: center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-69a2e565c3c4ca3f4ff3994be7b2ffa3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: 0px;\" \/><\/td>\n<td style=\"width: 17.3011%;height: 18px;text-align: center\">?<\/td>\n<td style=\"width: 19.2042%;height: 18px;text-align: center\">?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/back-matter\/answer-key-5-7\/\">Answer key 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