SOLUTION: A movie rental co has 2 plans. One charges $7 per month and $1 per movie rented. The other one charges $20 per moth and $.50 per movie. Bill has the first plan and Deanna has the s

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Question 590730: A movie rental co has 2 plans. One charges $7 per month and $1 per movie rented. The other one charges $20 per moth and $.50 per movie. Bill has the first plan and Deanna has the second plan. Last month they both paid the exact same amount and rented the exact same number of movies. Exactly how much did they each pay ?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
y=mx+b
y=x+7
y=x/2+20
x+7=x/2+20
x=x/2+13
x/2=13
x=26
They rented 26 movies.
They each paid 33 dollars