Question

Car speed. On a sales trip, Mark drives the 600 mi to Richmond averaging a certain speed. The return trip is made at an average speed that is 10 mph slower. Total time for the round trip is 22 hr. Find Mark’s average speed on each part of the trip.

Answer 1

\[Speed = \frac{distance}{time}\]

Answer 2

27 ?

Answer 3

Nope.

Answer 4

54.5 miles per hour

Answer 5

Make the data first,
To richmond,
time = 600/x

from Richmond,
600 /(x-10)

now equate,
\[\frac{600}{x} - \frac{600}{x-10} = 22\]Can you solve now?

Answer 6

you lost me.

Answer 7

Where?

Answer 8

oh i see I complety left out the 10 mph, sorry

Answer 9

Np, so you get it now?

Answer 10

yes lol,

Answer 11

;)

Answer 12

your awesome

Answer 13

Please hit good answer.

And thanks.

Answer 14

Tx