Roger has a nail that is 12 centimeters long. he measures and records the length of the nail as 15 centimeters. what is the percent error in rogers measurements?

 25%

Step-by-step explanation:

Given : Roger has a nail that is 12 centimeters long.

He measures and records the length of the nail as 15 centimeters.

i.e. Estimated length = 15 cm and Actual length = 12 cm

The percent error in Rogers measurements is given by :-

Hence, the percent error in Rogers measurements is 25%.

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: