Question 1168006: molly and her mom are 150 feet apart. molly is running towards her mom 8 feet per second. her mom runs 7 feet per second.
Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! Assuming:
1. her mother is running towards her and
2. you wish to know how long it will be before they meet,
then
the answer is obtained by their combined speed coming towards each other, which is 15 ft/sec
150 ft/15 ft/sec= units are seconds, which is what we want,
answer is 10 seconds.
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