SOLUTION: A car travels 20 miles in 30 minutes. If Mike drives the first 5 miles at 20 mph How fast is he driving the remainder of the trip?

Question 1186142: A car travels 20 miles in 30 minutes. If Mike drives the first 5 miles at 20 mph
How fast is he driving the remainder of the trip?

Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52754) (Show Source): You can put this solution on YOUR website!
.

The remaining trip is 20 - 5 = 15 miles long. Mike spends = of an hour = 15 minutes for the first part of the trip; hence, he spends 30 - 15 = 15 minutes for the remaining part. Thus Mike moves remaining part of 15 miles in 15 minutes; hence, his speed is 1 mile per minute, or 60 miles per hour. ANSWER

Solved and thoroughly explained.

Answer by josgarithmetic(39613) (Show Source): You can put this solution on YOUR website!
-----------------------------------------
A car travels 20 miles in 30 minutes.
-----------------------------------------

"A car" travels at the speed of 40 miles per hour.

------------------------------------------------------
If Mike drives the first 5 miles at 20 mph
How fast is he driving the remainder of the trip?
------------------------------------------------------

Is Mike driving "A car"?
That car travels at 40 mph, not at 20 mph.
The description for Mike and his travel is incomplete.

Maybe your exercise description was supposed to be like this:
--
--
Mike drives the first five miles of a 20 mile trip at 20 mph. How fast does he drive the remainder of this trip?

SPEEDS TIME in Hours MILES DISTANCE FirstPart 20 5/20=1/4 5 Remainder 1/2-1/4=1/4 20-5=15 TOTAL 1/2 20

The missing speed for the "Remainder" of the trip is
or 60 mph.
RELATED QUESTIONS
A car travels 20 miles in 30 minutes. If Mike drives the first 5 miles at 20 mph How... (answered by ikleyn)
A man has eight minutes to catch a train. The train station is 4 miles away. If he... (answered by solver91311)
if a man walks for 20 minutes and then drives in his car for an hour and a half he goes a (answered by checkley79,josmiceli)
Jack is driving at a speed that is 5 mph faster than Jill is driving. Jack drives 432... (answered by Alan3354)
Pete travels 60 miles in an hour. The first 20 miles he travels at a speed of 50 mph.... (answered by richwmiller)
The speed s of a vehicle is inversely proportional to the time t it takes to travel a... (answered by Cromlix,josmiceli)
I am having trouble with this problem? Can someone please help me? Dustin takes one... (answered by MathTherapy)
Jose is going on a little car trip. If he drives at 20 mph the first half of the... (answered by Alan3354)
You are driving to a destination that is 60 miles away. You want to get there for an... (answered by advanced_Learner,josmiceli)