Question

Cara can run 3 miles in 27 1/2 minutes Melanie can run 6 miles in 53 1/3 minutes who can run faster

Answer 1

Melanie can run faster

Step-by-step explanation:

We can say who runs faster by calculating their speed

Speed = Distance/ Time

Speed of Cara = 3 / (27 1/2) = 3/27.5 = 0.1090 Miles per minute

Speed of Melanie = 6/(53 1/3) = 6/53.3333 = 0.1125 Miles per minute

As we can see the speed of Melanie is higher than that of Cara. Therefore, Melanie runs faster

Answer 2

Melanie is running faster.

Step-by-step explanation:

Cara can run 3 miles in 27 1/2 minutes .

Distance traveled = 3 miles

Time taken to travel 3 miles =
`27(1)/(2) =(27*2+1)/(2) =(55)/(2) minutes`

Speed of Cara = Distance / Time =
`(3)/((55)/(2) ) =(6)/(55)=0.109miles/min`

Melanie can run 6 miles in 53 1/3 minutes

Distance traveled = 6 miles

Time taken to travel 6 miles =
`53(1)/(3) =(53*3+1)/(3) =(160)/(3) minutes`

Speed of Melanie = Distance / Time =
`(6)/((160)/(3) ) =(18)/(160)=0.1125miles/min`

Speed of Melanie > Speed of Cara.

Melanie is running faster.