Question

Tim sold 15 boxes of doughnuts for a school fundraiser. The boxes cost $4 each. Which pair of expressions shows two ways to determine the total cost of the doughnuts Tim sold? A) 10 × 4 and 10 × 5 B) 15 × 4 and 10 × 4 C) (15 × 4) + (5 × 4) and 4 + 4 + 4 + 4 D) (10 × 4) + (5 × 4) and 15 + 15 + 15 + 15

Answer 1

(D) (10 × 4) + (5 × 4) and 15 + 15 + 15 + 15

Explanation:

Given;

total number of boxes of doughnuts sold, T = 15 boxes

the cost of each box of doughnuts, C = $4

The total cost of the doughnuts sold = 4 x 15 = $60

The only option that contains pair of expressions that is equal to $60 is option D.

(D) (10 × 4) + (5 × 4) and 15 + 15 + 15 + 15

(10 × 4) + (5 × 4) = 40 + 20 = $60

15 + 15 + 15 + 15 = $60