Math

Marta, Loribeth, and Ira all have bicycles. The table shows the number of miles of each rider's last bike ride, as well as the time it took to complete the ride.

Marta:
Distance of Last Ride (in miles)
8
Time Spent on Last Bike Ride (in minutes)
80


Loribeth:
Distance of Last Ride (in miles)
6
Time Spent on Last Bike Ride (in minutes)
42

Ira:
Distance of Last Ride (in miles)
15
Time Spent on Last Bike Ride (in minutes)

a. What is Marta's unit rate, in minutes per mile?
80 min/8 miles=x/1
80x1=80
80/8=10 minutes
x=10

10 minutes in 1 mile

b. Whose speed was the fastest on their bike ride?
I chose Ira because:
75 min/15miles=x/1
75x1=75
75/15=5 min
Loribeth was 7 minutes in 1 mile so I chose Ira.

If all three riders travel 3.5 hours at the same speed as their last ride, how many total miles will the three riders travel altogether? Explain

I am somewhat stuck on the last part of the question.

Can you please assist me and can you also check to see if my answers are correct?

Thank you

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asked by Matt
  1. (a) and (b) look ok

    distance = speed * time, so since the time is the same (3.5 hrs), just add up all the speeds and multiply by 210 minutes:

    210(8/80 + 6/42 + 15/75) = 93 miles

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    posted by Steve
  2. We're did you get 210 from

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  3. He got 210 because 180 + 30. 3 hours plus a half of an hour

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    posted by Logan
  4. Bol
    L

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  5. Aids

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  6. I wasn’t sure of this question either but, you need to just multiply the distance of last ride by 3.5 that’s what I did. Someone check if I’m wrong. Thank you

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    posted by Tess
  7. Or just give me the answer pls and thank u

  8. Dunno.

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    posted by Kathy
  9. 210 min. = 3.5 hours
    So, that's where you get 210.
    Also, the answer I got was 93 miles. Don't Forget To Label !

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  10. Still don’t know how to do the math part of it

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    posted by ?????
  11. I agree can U help

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    posted by Idk

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