Question

Amber kept track of every minute she practiced guitar. During the week Amber practiced 9 7/30 hrs, but on the weekend she could only spend 17/30 of an hour practicing. About how many hrs did amber practice total during the week and weekend? Estimate by rounding to the nearest whole number.

Answer 1

start by converting the mixed number into a fraction

`9(7)/(30)=(30\cdot9+7)/(30)=(270+7)/(30)=(277)/(30)`

add both week and weekend hours

`(277)/(30)+(17)/(30)=(277+17)/(30)=(294)/(30)`

convert the fraction to decimal

`(294)/(30)=9.8\approx10hours`