3 years ago

Use properties of rational numbers to multiply the following.

Mathematics

1 answer:

SashulF [63]3 years ago

4 0

-126.....................................................

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At a birthday party there were five more girls than boys. If the ratio of girls to boys was 4 to 3,

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Let number if boys be x

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ATQ

$\\ \sf\longmapsto \dfrac{x+5}{x}=\dfrac{4}{3}$

$\\ \sf\longmapsto 3(x+5)=4x$

$\\ \sf\longmapsto 3x+15=4x$

$\\ \sf\longmapsto 4x-3x=15$

$\\ \sf\longmapsto x=15$

<h3>Number of girls</h3>

$\\ \sf\longmapsto x+5=15+5=20$

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