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aliina [53]
3 years ago
11

You are given the difference of the numbers of boys and girls in a class and the ratio of boys to girls. How many boys and how m

any girls are in the class?
3 more boys; 5 for every 4

Mathematics
1 answer:
Radda [10]3 years ago
5 0

Answer:

Step-by-step explanation:

b/g=5/4

b=5g/4, we are also told b=g+3, since b=b we can say

5g/4=g+3, multiply each side by 4

5g=4g+12, subtract 4g from each side

g=12, and since b=g+3

b=12+3=15

So there are 15 boys and 12 girls.

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