15
QuizMultiple Choice

Dividing Fractions — Unit test

Question 15 • Troll - Pre-Algebra - MA3119 A

Dion is laying brick down to make a patio. He plans for the patio to be 8.75 feet by 14.8 feet. He orders enough brick for 135 square feet. Which statement about the amount of brick is correct?

Answer
A
Dion estimated correctly by rounding up. He ordered enough brick. The exact area is 129.5 square feet.
B
Dion estimated correctly by rounding down. He ordered enough brick. The exact area is 129.5 square feet.
C
Dion did not estimate correctly by rounding up. He did not order enough brick. The exact area is 129.5 square feet.
D
Dion did not estimate correctly by rounding down. He did not order enough brick. The exact area is 129.5 square feet.

Explanation

Rounding each dimension up gives 8.75 feet ≈ 9 feet and 14.8 feet ≈ 15 feet, so the estimated area is 9 × 15 = 135 square feet. The exact area is 8.75 × 14.8 = 129.5 square feet. Since Dion ordered 135 square feet of brick, he ordered enough, and the estimate was correctly made by rounding up. Choice A is correct.

AI-written and checked against the verified answer.