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Mathematics 12 Online
OpenStudy (anonymous):

a jet plane traveling at 500 mph overtakes a propeller plane traveling at 200 mph that had a 4-hour head start. How far from the starting point are the planes?

OpenStudy (mertsj):

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OpenStudy (mertsj):

Write the equation that says that the two distances are equal. Solve for t. Use the solution for time to calculate the distance.

OpenStudy (anonymous):

500t=200(t+2) @Mertsj

OpenStudy (mertsj):

500t =200(t+4)

OpenStudy (anonymous):

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OpenStudy (anonymous):

8/3?

OpenStudy (mertsj):

500t = 200t+800 300t=800 t=8/3 d=500t=500(8/3)=1,333 1/3miles

OpenStudy (anonymous):

I give up

OpenStudy (mertsj):

why do you give up? You found out that in 2 2/3 hours the jet will catch the other plane, right?

OpenStudy (anonymous):

I'm trying so hard to do these problems and I can't do it.

OpenStudy (mertsj):

Stop saying "can't". You got the time right. If you go 50 miles in one hour, how far will you go in 2 hours?

OpenStudy (mertsj):

Answer is 50 times 2

OpenStudy (mertsj):

If the jet goes 500 miles in 1 hour, how far will it go in 2 2/3 hours?

OpenStudy (anonymous):

I'm on a different question now. It's just stressful.

OpenStudy (mertsj):

Answer is 500 time 2 2/3

OpenStudy (anonymous):

I know but I'm on A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the average speed on the level road if the entire trip was 188 miles.

OpenStudy (anonymous):

@Mertsj

OpenStudy (mertsj):

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