Question

Mr. Green buys a new printer for $110.10 and packs of printer paper for 4 each for his classroom for a total of $160.10. The following equation represents Mr. Green's total cost where x is the number of printer paper packs purchased. How many packs of printer paper did Mr. Green buy?

A) x = 12
B) x = 20
C) x = 25
D) x = 30

Answer 1

Mr. Green bought 12 packs of printer paper because if each pack costs $4, the $50 spent on paper (total cost minus printer cost) divided by $4 equals 12.

Step-by-step explanation:

To determine how many packs of printer paper Mr. Green bought, we need to use the information provided in the equation that represents the total cost. We know that Mr. Green spent $110.10 on a printer and $160.10 in total, which includes the cost of the printer paper packs. Let's subtract the cost of the printer from the total cost to find out how much was spent on the paper packs alone:

• Total cost for printer and paper: $160.10
• Cost of the printer: $110.10
• Total cost for paper packs: $160.10 - $110.10 = $50

Since each pack of printer paper costs $4, we will divide the total cost for the paper packs by the cost per pack to find the number of packs:

$50 ÷ $4 = 12.5

However, since you cannot buy half a pack of paper, we need to consider only whole numbers. This suggests that Mr. Green bought 12 packs of printer paper because buying 13 packs would exceed his total expenditure on paper. Therefore, the answer is A) x = 12.