{"id":1612,"date":"2019-07-29T16:33:34","date_gmt":"2019-07-29T20:33:34","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/?post_type=back-matter&#038;p=1612"},"modified":"2019-07-29T16:43:28","modified_gmt":"2019-07-29T20:43:28","slug":"answer-key-7-10","status":"publish","type":"back-matter","link":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/back-matter\/answer-key-7-10\/","title":{"raw":"Answer Key 7.10","rendered":"Answer Key 7.10"},"content":{"raw":"[latexpage]\r\n\r\n\\(\\begin{array}{rrl}\r\n\\text{2012 average age}&amp;=&amp;\\phantom{-}\\text{2016 average age} \\\\ \\\\\r\n10x&amp;=&amp;\\phantom{-}9(x+4)+N \\\\\r\n10x&amp;=&amp;\\phantom{-}9x+36+N \\\\\r\n-9x&amp;&amp;-9x \\\\\r\n\\midrule\r\nx&amp;=&amp;\\phantom{-}36+N \\\\ \\\\\r\nx&amp;=&amp;\\phantom{-}36+N \\\\\r\n-36&amp;&amp;-36 \\\\\r\n\\midrule\r\nx-36&amp;=&amp;\\phantom{-}N\r\n\\end{array}\\)\r\n\r\n&nbsp;\r\n\r\nThis means the new member is 36 years younger than the average age in 2012.","rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-content\/ql-cache\/quicklatex.com-4c21e2064266d025f930c111c36956ec_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;&#114;&#114;&#108;&#125; &#92;&#116;&#101;&#120;&#116;&#123;&#50;&#48;&#49;&#50;&#32;&#97;&#118;&#101;&#114;&#97;&#103;&#101;&#32;&#97;&#103;&#101;&#125;&#38;&#61;&#38;&#92;&#112;&#104;&#97;&#110;&#116;&#111;&#109;&#123;&#45;&#125;&#92;&#116;&#101;&#120;&#116;&#123;&#50;&#48;&#49;&#54;&#32;&#97;&#118;&#101;&#114;&#97;&#103;&#101;&#32;&#97;&#103;&#101;&#125;&#32;&#92;&#92;&#32;&#92;&#92; &#49;&#48;&#120;&#38;&#61;&#38;&#92;&#112;&#104;&#97;&#110;&#116;&#111;&#109;&#123;&#45;&#125;&#57;&#40;&#120;&#43;&#52;&#41;&#43;&#78;&#32;&#92;&#92; &#49;&#48;&#120;&#38;&#61;&#38;&#92;&#112;&#104;&#97;&#110;&#116;&#111;&#109;&#123;&#45;&#125;&#57;&#120;&#43;&#51;&#54;&#43;&#78;&#32;&#92;&#92; &#45;&#57;&#120;&#38;&#38;&#45;&#57;&#120;&#32;&#92;&#92; &#92;&#109;&#105;&#100;&#114;&#117;&#108;&#101; &#120;&#38;&#61;&#38;&#92;&#112;&#104;&#97;&#110;&#116;&#111;&#109;&#123;&#45;&#125;&#51;&#54;&#43;&#78;&#32;&#92;&#92;&#32;&#92;&#92; &#120;&#38;&#61;&#38;&#92;&#112;&#104;&#97;&#110;&#116;&#111;&#109;&#123;&#45;&#125;&#51;&#54;&#43;&#78;&#32;&#92;&#92; &#45;&#51;&#54;&#38;&#38;&#45;&#51;&#54;&#32;&#92;&#92; &#92;&#109;&#105;&#100;&#114;&#117;&#108;&#101; &#120;&#45;&#51;&#54;&#38;&#61;&#38;&#92;&#112;&#104;&#97;&#110;&#116;&#111;&#109;&#123;&#45;&#125;&#78; &#92;&#101;&#110;&#100;&#123;&#97;&#114;&#114;&#97;&#121;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"228\" width=\"338\" style=\"vertical-align: -108px;\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>This means the new member is 36 years younger than the average age in 2012.<\/p>\n","protected":false},"author":727,"menu_order":62,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"back-matter-type":[],"contributor":[],"license":[],"class_list":["post-1612","back-matter","type-back-matter","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/types\/back-matter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/users\/727"}],"version-history":[{"count":3,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1612\/revisions"}],"predecessor-version":[{"id":1615,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1612\/revisions\/1615"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1612\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/media?parent=1612"}],"wp:term":[{"taxonomy":"back-matter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter-type?post=1612"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/contributor?post=1612"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/license?post=1612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}