Homework Help: math

Posted by miguel on Wednesday, February 17, 2010 at 6:35pm.

the ratio of boys to girls in a science class is 5 to 4. If there are 8 girls in the class, how many boys are there?

math - Ms. Sue, Wednesday, February 17, 2010 at 6:46pm
Let's set up a ratio. Let x = number of boys

5/4 = x/8

Cross multiply

4x = 40
x = ?
math - kirstin, Wednesday, January 19, 2011 at 6:47pm
x=10

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