Homework Help: math

Posted by kel on Friday, August 12, 2011 at 1:22pm.

in a bike race, ramit and keith started at the same time abd rode with constant speeds. Ramit rode 30 miles per hour, and keith rode at 35 miles per hour. If ramit crossed the finish line 10 minutes after keith, how many miles long was the race?

math - Damon, Friday, August 12, 2011 at 5:12pm
10 min = 1/6 hr

distance = rate * time
30 t = 35 (t-1/6)
30 t = 35 t - 35/6
35/6 = 5 t
t = 7/6 hr
d = 30 t = 30*7/6 = 5*7 = 35 miles
math - shivendra, Saturday, October 1, 2011 at 5:15am
10.267
math - maria, Wednesday, January 4, 2012 at 9:40pm
juan entered a bike race which he was to ride 45 miles. stopping at certain intervals during the race to check in with the scorers .he checked in 9 times before crossing the finish line if the intervals wre eaqually spaced throughoutthe race,how far apart were they?

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