The length of a rectangle is 6 centimeters and its area is (6x + 18)square centimeters. Write an expression for the width.
1 answer:
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Answer:
Answer : 52 girls
Step-by-step explanation:
Your ratio of boys to girls is 3:4
Set up a fractional proportion and cross multiply
3/4 = 39/x
cross multiply
3x = 4(39)
3x = 156
x = 156/3
x = 52 girls
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