the ratio of girls to boys in a class is 2 ratio 3 if there are 12 boys , how many girls are there ?
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Step-by-step explanation:
Explanation:
So, from the problem we know 2 things:
The ratio of girls to boys is 3 to 2.
Hypothetically, there are 12 boys.
We can use a proportion to solve this problem:
3
2
=
x
12
And then we cross-multiply to get this:
2
x
=
36
Then, using the Division Property of Equality, we divide by 2 on both sides, resulting in the answer:
x
=
18
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