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DerKrebs [107]
3 years ago
13

A cell phone company charges a flat Rate of 4.75 per month with an additional charge .19 per minute. How many minutes did alexan

dra talk on her cell phone if your monthly bill was 27.55
Mathematics
1 answer:
mote1985 [20]3 years ago
8 0

Answer:The number of minutes that Alexandra talked on her cell phone is 120

Step-by-step explanation:

A cell phone company charges a flat rate of 4.75 per month with an additional charge 0.19 per minute. Assuming the total number of minutes of call made for the month is represented by x and the total cost of x minutes of call is y, then

y = 0.19x + 4.75

To determine how many minutes that Alexandra talked on her cell phone if his monthly bill was 27.55, we would substitute y = 27.55 into the equation. It becomes

27.55 = 0.19x + 4.75

0.19x = 27.55 - 4.75 = 22.8

x = 22.8/0.19 = 120 minutes.

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