patsy2559 patsy2559

06-01-2016
Mathematics

Answered

there are 12 boys and 10 girls in the gym class. If 6 more boys joined , how many more girls are needed to stay at the same ratio.

Verified Answer :

huckleberrypie huckleberrypie

06-01-2016

\(\frac{12}{10}= \frac{18}{x}\)
cross multiply
12x=180
divide both sides by 12
x=15
if their is 10 girls, then you need 5 more to keep the ratio.

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