Asked by marivel

if 3 out of every 7 student are boys , write equivanent fractions that can be used to determine how many out of 84 are boys. use a variable to represent the number of boys help me please i need it for tomarrow
Answered by drwls
3/7 = x/84

Solve for x

One way to solve that is to multiply both sides by 84.

Note that 1/7 of 84 is 12.
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