Solve.
-It took Sara's mother 9 hours round trip to drive to the University and bring Sara back home for spring break. If the University is 2471/2miles from home, find her mother's average speed.
A) $27 \frac { 1 } { 2 } \mathrm { mph }$
B) 56 mph
C) 55 mph
D) $55 \frac { 1 } { 2 } \mathrm { mph }$

Question

Solve.
-It took Sara's mother 9 hours round trip to drive to the University and bring Sara back home for spring break. If the University is 2471/2miles from home, find her mother's average speed.
A) $27 \frac { 1 } { 2 } \mathrm { mph }$
B)  56 mph 
C)  55 mph
D) $55 \frac { 1 } { 2 } \mathrm { mph }$

Quizplus · Accepted Answer

The total distance for the round trip is $2 \times 247\frac{1}{2} = 495$ miles. To find the average speed, divide the total distance by the total time: $495 \div 9 = 55$ mph.

Solve -It Took Sara's Mother 9 Hours Round Trip to Drive

Solve
-It Took Sara's Mother 9 Hours Round Trip to Drive