SOLUTION: Stella drove her car 45 mi. She ran out of gas and had to walk 3 mi to a gas station. Her speed driving is 15 times her speed walking.If the total time for driving and walking is 1
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Question 960543: Stella drove her car 45 mi. She ran out of gas and had to walk 3 mi to a gas station. Her speed driving is 15 times her speed walking.If the total time for driving and walking is 1 1/2 hour, what was her speed driving? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Stella drove her car 45 mi. She ran out of gas and had to walk 3 mi to a gas station. Her speed driving is 15 times her speed walking.If the total time for driving and walking is 1 1/2 hour, what was her speed driving?
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let x=Stella's walking speed
15x=Stella's driving speed
..
lcd:15x
45+45=45x/2
45x=180
x=4
15x=60
Stella's walking speed=4 mph
Stella's driving speed=60 mph
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