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20-11-2017
Computers and Technology

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A phone call costs $0.58 plus $0.15 cents per minute. If the total charge for the call was $4.78, how many minutes was the call?

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20-11-2017

4.78X=0.58 +0.15
-0.58 -0.58
4.20X= 0.15
/0.15 /0.15
X = 28

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