Question

Andy estimated that he would need 79 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 68 feet. What was the percent error of Andy's estimation?
11%
13.92%
16.18%
86.08%

Answer 1

@AlexandervonHumboldt2

Answer 2

@dtan5457

Answer 3

@fbi2015

Answer 4

lets see

Answer 5

79-68 to see how far he was off.

divide that by 79

Answer 6

6.90

Answer 7

11/79=?

Answer 8

0.13

Answer 9

you didn't round correctly

Answer 10

11/79=0.13924050632

Answer 11

0.13924050632=13.92%