A man drives for awhile as mph. Realizing he is running late, he increases his speed to mph and completes his 405mile trip in 8 hours. How long does the man drives at 45mph.

Question

anonymous · Answer

A man drives for "awhile as mph" and increases his speed to "mph". Need some clarification here x.x

anonymous · Answer

A man drives for awhile as45mph. Realizing he is running late, he increases his speed to 60mph and completes his 405 mile trip in 8hours. How long does the man drive at 45 mph?

anonymous · Answer

Just solve it backwards. Start at the 405 mile total trip and subtract the distance he traveled in the 8 hours he spent going 60 mph.  Then divide that by the 45 mph he was traveling before to get the time he waas traveling 45 mph

anonymous · Answer

i dont know the distance he travled in the 8 hours though

anonymous · Answer

Yes you do. The mph times hours is the distance

anonymous · Answer

so i would do 60 times 8

anonymous · Answer

ya, just look at the units
$$miles/hours * hours = miles$$

anonymous · Answer

i still dont get it

anonymous · Answer

@Mertsj  can u help me

mertsj · Answer

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