SOLUTION: franklin school has 3 boys for every 4 girls in the 5th grade. there are 140 students in the 5th grade. how many are boys? How many are girls?
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Question 452838: franklin school has 3 boys for every 4 girls in the 5th grade. there are 140 students in the 5th grade. how many are boys? How many are girls?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The ratio of boys to girls is
Let = number of boys
Let = number of girls
given:
(1)
(2)
---------------
(2)
Substitute this into (1)
(1)
(1)
(1)
(1)
and
(1)
(1)
There are 60 boys and 80 girls
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