Mr. Imani wants to purchase paper and notebook for his classroom. At Dollar Discount he can buy packs of paper, p, for $1.25 each and notebooks, n, for $2.50 each. This is modeled by 1.25p + 2.50n. Evaluate for p = 10 and n = 30 to find how much it will cost Mr. Imani to purchase 10 stacks of paper and 30 notebooks.

1 answer

To find out how much it will cost Mr. Imani to purchase 10 packs of paper and 30 notebooks, we need to evaluate the expression \( 1.25p + 2.50n \) by substituting \( p = 10 \) and \( n = 30 \).

Substituting the values into the expression, we have:

\[ 1.25(10) + 2.50(30) \]

Now calculate each term:

  1. For the packs of paper: \[ 1.25 \times 10 = 12.50 \]

  2. For the notebooks: \[ 2.50 \times 30 = 75.00 \]

Now, add these two results together:

\[ 12.50 + 75.00 = 87.50 \]

Thus, the total cost for Mr. Imani to purchase 10 packs of paper and 30 notebooks is $87.50.