Last night, the temperature fell from 0°F to - 13-Fi

45

hours. Alan calculated the average temperature

change per hour.

1

-13

Alan solved the problem, but when he checked the

answer by estimating, it didn't seem right. What error

did he make?

O Alan converted the mixed number to the wrong

improper fraction.

O He did not use the correct reciprocal fraction.

O He did not change the division problem to

multiplication.

O He added the numerators and denominators

instead of multiplying.

2

5

4.

66

5

22

5

66/22

6 (13)

1,452

25

Intro