if the ratio of girls to boys in a class is 3:5 respectively, what percent is made up of boys?
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if the ratio of girls to boys in a class is 3:5 respectively, what percent is made up of boys?
if the ratio of girls to boys in a class is 3:5 respectively, what percent is made up of boys?
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Answer:
62.5%
Step-by-step explanation:
if the ratio of girls to boys is 3:5, then the total number of girls and boys can be expressed as 3x + 5x = 8x. Since there are 5x boys over 8x number of persons in the class, therefore, 5x/8x = 5/8, (cancel the variable x) then divide 5 by 8 = 0.625 times 100. thus, 62.5%