5. Juan’s cell phone company charges $35 a month for the phone service plus $0.50 for each text message. How many text messages does Juan send in a month if his bill was $52?

34

Explanation:

Total Cost = Fixed Charge + 0.50 * number of text messages

Total Cost = 52 dollars.

text Messages = x

Fixed charge = 35 dollars.

Equation

Total Cost = Fixed Charge + number of text message * 0.50

Solution

52 = 35 + 0.50 * x                  Subtract 35 from both sides

52 - 35 = 35-35 + 0.50x        Combine

17 = 0.50x                               Divide by 0.50

17/0,50 = 0.50*x/0.50

x = 34 text messages

b.

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