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2 cars leaving Hyland at the same time, one traveling North and the other going South. The 1st car is driving 6 mph faster than the 2nd car. After 2.5 hours they are 345 miles apart. What is the speed
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Nov 28, 2018
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2 cars leaving Hyland at the same time, one traveling North and the other going South. The 1st car is driving 6 mph faster than the 2nd car. After 2.5 hours they are 345 miles apart. What is the speed of the 1st car ?
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Kamyar Gilak
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What is the speed of the 1st car ?
Alessandro Scarlatti
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Nov 30, 2018
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Alessandro Scarlatti
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(a+a+6)*2.5=345
2a+6=138
a=132/2
a=66 mph
a+6=66+6=72 mph
Speed of the first car is 72 mph
Malonge
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Dec 4, 2018
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Malonge
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