SOLUTION: 45 min/2miles =??hrs/1mile I am trying to help my son. the book says the answer is 3/8...help...lol

Question 384300: 45 min/2miles =??hrs/1mile
I am trying to help my son. the book says the answer is 3/8...help...lol
Found 3 solutions by ankor@dixie-net.com, stanbon, rfer:
Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
45 min/2miles =??hrs/1mile
:
Change 45 min to hr, they want the solution in hrs
:
It will take half the time to go 1 mi as it will to go 2 mi; right?
therefore
* =
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
45 min/2miles =??hrs/1mile
I am trying to help my son. the book says the answer is 3/8
-----
(45 min/2 miles)(22.5min/1 mile)
-----
Convert 22.5 min to hrs.
(22.5 min)(1 hr/60 min) = (22.5/60) = 3/8 hr
----
Ans: = [(3/8) hr]/1 mile
===================================
Hope this helps.
Cheers,
Stan H.
==============
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
45 min = 3/4 hr
(3/4)/2=x/1
cross multiply
2x=3/4*1
2x=3/4
divide by 2
x=(3/4)/2
invert and multiply
x=3/4*1/2
x=3/8
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