Question

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? dion estimated correctly by rounding up. he ordered enough brick. the exact area is 129.5 square feet. dion estimated correctly by rounding down. he ordered enough brick. the exact area is 129.5 square feet. dion did not estimate correctly by rounding up. he did not order enough brick. the exact area is 129.5 square feet. dion did not estimate correctly by rounding down. he did not order enough brick. the exact area is 129.5 square feet.

Explanation:

Step1: Calculate the exact area

The area of a rectangle is $A = l\times w$, where $l = 14.8$ feet and $w = 8.75$ feet. So $A=14.8\times8.75 = 129.5$ square - feet.

Step2: Compare with the ordered amount

Dion ordered enough brick for 135 square feet. Since $129.5<135$, he ordered enough brick. And $129.5$ rounded up to the next whole number is 130 (rounding up), and he ordered 135. So he estimated correctly by rounding up.

Answer:

Dion estimated correctly by rounding up. He ordered enough brick. The exact area is 129.5 square feet.