Question

I could really use some help with an algebra travel/distance problem. Bill and Tom are having a bicycle race, each going to the other's house. Tom follows the straight lines, going 21 mph (for a total of 33 miles, and Bill takes the hypotenuse of the triangle as a shortcut, going 15 mph (for 15 miles) and then 21 mph the rest of the way (12 miles). I need to figure out how long it too each of them to get to the other's house.

Answer 1

How long does it take to reach 21 miles if you're going 21 MLES PER HOUR?

Answer 2

That's obvious. I need help with the other one to double check my answer.

Answer 3

Well first off, Bill has 33 miles to do...?

Answer 4

Tom has to do 24+9=33 miles

Answer 5

Ok! So if you just want to check your asnwers, I can just give them to you.

Answer 6

Bill has 15 miles at 15 mph, and then 12 miles at 21 mph. I understand how to get to the answer, but I need to show my work and I want to make sure I am showing all steps.

Answer 7

I see,

Answer 8

That would be great!

Answer 9

Let's start with Tom.

21 mph for 33 miles
33./21 x 60 = 1h34 approx.

Bill :

15mph for the first 15 miles so 1 hour for that.

21mph for 12 miles
12/21 x 60 =34 minutes approx.

1h + 34 =1h34 approx.

It took 1h34 to get to one house to another. I have to go, sorry if I skiiped a few steps.

Answer 10

thanks so much, thats what i got too!