SOLUTION: Could someone show me step by step how to do this? Word Problem:Science and medicine. Ariana took 2 hours longer to drive 360 mi on the first day of a trip than she took to

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Could someone show me step by step how to do this? Word Problem:Science and medicine. Ariana took 2 hours longer to drive 360 mi on the first day of a trip than she took to      Log On


   



Question 46563: Could someone show me step by step how to do this?
Word Problem:Science and medicine.
Ariana took 2 hours longer to drive 360 mi on the first day of a trip than she took to drive 270 mi on the second day. If her speed was the same on both days, what was the driving time each day?

Found 2 solutions by checkley71, tutorcecilia:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
YOU DSID NOTHING WRONG. I FOUND THE SPEED NOT THE TIME
d=r*t 360-270=S*2 OR 90=2S OR S=90/2 O0R S=45 MPH
TIME=D/S OR 360/45=270/45+2 OR 8=6+2 OR 8=8 THUS THE TIME IS 8 HRS. & 6 HRS.
SORRY FOR THE CONFUSION. I NEED TO READ THE QUESTION MORE CAREFULLY.

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
d=rt [Basic formula for distance]
d1=rt and d2=rt [Solve for the rate (r) or speed]
d1/t=r and d2/t=r
d1/t=d2/t [Both rates are equal]
(360)/(t+2) = (270)/(t) [Plug-in the values]
(360)(t+2) = (270)(2) [Solve for "t"][Cross-multiply]
360t = 270t+540 [Simplify]
360t-270t=540
90t/90=540/90
t=6
First day: t+2=6+2=8 hours
Second day: t = 6 hours