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Jamie’s parents gave him some money at the start of the school year to spend on supplies throughout the year. He spends $15 at the start of each month on paper, pens, and other supplies. The equation of the line is given below, where A is the amount of money remaining in his bank account and m is the number of months. Determine the number of months it will take Jamie to run out of money.

 

A(m) = -15m + 105

 Apr 16, 2021
 #1
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It will take him 7 months for Jamie to run out of money.

 

A(7) = -15(7) + 105

 

A(7) = -105 + 105

 

A(7) = 0.

 Apr 16, 2021

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