## Foreverisabell Group Title I have no idea how to do this. HELP PLEASE..Your grandmother called and asked you to come over. You rode your bike 15.25 miles in 30 minutes. How many miles per hour did you travel? one year ago one year ago

1. precal Group Title

|dw:1363286853504:dw|

2. Foreverisabell Group Title

Im still confused?

3. precal Group Title

do you have a calculator? just divide those two numbers and that will be your solution

4. Foreverisabell Group Title

Yes I divided them & got 0.50 which isn't correct?

5. precal Group Title

|dw:1363287050870:dw|

6. Foreverisabell Group Title

15.25 mph 61 mph 45.75 mph 30.5 mph

7. Foreverisabell Group Title

8. Foreverisabell Group Title

It has to be one of those. & idk how to find it?

9. Foreverisabell Group Title

Can we do it step by step?

10. precal Group Title

|dw:1363287108792:dw|that checks out

11. precal Group Title

mph is miles per hours

12. Foreverisabell Group Title

what is D?

13. precal Group Title

|dw:1363287263174:dw|

14. Foreverisabell Group Title

what is D??? & R? & T?

15. precal Group Title

30.5 mph d is distance r is rate and t is time just your basic formula

16. Foreverisabell Group Title

so its 30.5?

17. Foreverisabell Group Title

mph?

18. precal Group Title

yes 30.5 mph

19. Mertsj Group Title

Oh my goodness!!! How many minutes in an hour? 60 of course so 15.25 miles in 30 minutes = x miles in 60 minutes.

20. Mertsj Group Title

|dw:1363287452427:dw|

21. precal Group Title

|dw:1363287515321:dw|

22. precal Group Title

this is called a proportion and that is another way to do this problem....

23. precal Group Title

Use dimensional analysis. miles per hour = $\frac{\text{miles}}{\text{hours}}$ $\frac{15+\frac{1}{4}}{\frac{30}{60}}=\frac{61}{2}=30.5$