Mr Imani wants to purchase paper and notebooks 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 packs of paper and 30 notebooks.

Question

Mr Imani wants to purchase paper and notebooks 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 packs of paper and 30 notebooks.

Answer 1

To find out how much it will cost Mr. Imani to purchase 10 packs of paper and 30 notebooks, we need to substitute the given values of p=10 and n=30 into the expression 1.25p + 2.50n and evaluate it.

Step 1: Replace p by 10 and n by 30 in the expression 1.25p + 2.50n:

1.25(10) + 2.50(30)

Step 2: Multiply:

12.50 + 75.00

Step 3: Add:

87.50

Therefore, it will cost Mr. Imani $87.50 to purchase 10 packs of paper and 30 notebooks.