SOLUTION: I am relearning Algebra for the ACT and I'm stuck on this problem. Can you help me? Marlo has a basketball court that measures 30 feet by 50 feet. She needs a grass strip around

Question 762029: I am relearning Algebra for the ACT and I'm stuck on this problem. Can you help me?
Marlo has a basketball court that measures 30 feet by 50 feet. She needs a grass strip around it. How wide must the strip be, in feet, to provide 900 square feet of grass?
A. 3
B. 4
C. 5
D. 6
E. 7
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Grass strip + the court = 900 sq. ft.
The court by itself is sq. ft.

The grass strip + the court is some unknown width, w more than the border between grass strip and court. This whole combined area is sq. ft.

One of the solutions will make sense and the other will not make sense.
feet.
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