The ratio of boys to girls at a movie is 4:7 if there are 21 girls how many boys are at the movie

asked Apr 27, 2018 152k views

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3 votes

If ratios aren't a strong thing for you, make it into a fraction and compare it that way.

4/7 = _/21

21 divided by 7 = 3

So, 3 times 4 = _

Voronnenok answered Apr 30, 2018

7.9k points

3 votes

Hi!

4:7
x:21

21/7 = 3
4 · 3 = 12

4:7
12:21

There are 12 boys at the movie.

Hope this helps! :)

Navyad answered May 2, 2018

7.7k points

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