Question

Dana is training to run a marathon. On Monday, she ran 10.2 miles. On Tuesday, she ran 11.4 miles. On Wednesday and Thursday, she ran 11.8 miles each day. On Friday, she ran 12.3 miles. Round each amount to the nearest whole mile to find a reasonable estimate of the total number of miles Dana ran over this five-day period.

Answer 1

:Choose one of these answer choices

:answer choices

A) 54

B) 57

C) 62

D) 65

Answer 2

57 miles

Explanation:

Rounding

Monday : 10.2 = 10

Tuesday : 11.4 = 11

Wednesday and Thursday : 11.8 = 12

Friday : 12.3 = 12

Estimation :

10 + 11 + 2(12) + 12 = 57