Homework Help: math

Posted by wobble it on Saturday, February 2, 2013 at 12:12pm.

franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade.

A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!

math - Ms. Sue, Saturday, February 2, 2013 at 12:30pm
Let x = number of boys

3/7 = x/140

7x = 420

x = 60
math - Anonymous, Monday, February 4, 2013 at 1:46pm
3:4 add 4+3= 7. 140/7 =20.

3 X 20 = 60
4 x 20 = 80
math - Anonymous, Monday, February 4, 2013 at 1:46pm
3:4 add 4+3= 7. 140/7 =20.

3 X 20 = 60
4 x 20 = 80

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