SOLUTION: How long will it take you of your going 3 miles per hour, going 2 miles? HELP!

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Question 509618: How long will it take you of your going 3 miles per hour, going 2 miles? HELP!
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
d = r*t is the fundamental distance equation.
.
you need to know 2 of these to calculate the 3rd.
.
3 mph = r
2 mph = r
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but unless you know 'd', you cannot calculate 't'
.
Say d = 9
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9 = 3t
t = 9/3 = 3 hr : It takes 3 hr at 3 mph to go 9 miles
.
9 = 2t
t = 9/2 = 4 1/2 : It takes 4 1/2 hr at 2 mph to go 9 miles.
.
And so forth.