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Re: SAT and the AT
> >23. excluding rest stops, it took juanita a total of 10
> >hours to hike from the base of a mountain to the top
> >and back down again by the same path (could this be >Katahdin?).
> > if while hiking she averaged 2 miles per hour going up and
> >3 miles per hour going down, how many miles was it from the
> >base to the top?
> Did you figure out the answer?
> I will use it on my Algebra 2 class.
> Art Cloutman
It's 12, isn't it?
let x=distance up (&down)
then x / 2 mph = time up
& x / 3 mph = time dn
put it all togeather to get : x/2 + x/3 = 10hrs.
multiply each value in the equation by 6(least common multiple?) to get
3x+2x=60 or 5x=60 or x=60/5=12
good luck on the test !!