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wolverine [178]
3 years ago
9

Two cars start at the same time, but travel in opposite directions. One car's average speed is 20 miles per hour (mph). At the e

nd of 2 hours, the two cars are 120 miles apart. Find the
average speed in mph of the other car. (Enter an exact number.)
help
X mph
Need Help?
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Mathematics
1 answer:
Otrada [13]3 years ago
5 0

Answer:

The first car's speed is 40 mph. 2 hours at that rate equals 80 miles. So:

 

140-80=60

60 miles/2 hours=30 mph as the rate of the second car.

Step-by-step explanation:

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Suppose you are driving to visit a friend in another state. you are driving 55 miles per hour. you must drive 440 miles total. i
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Time=(distance)/(speed)
speed=55 mi/hr
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Time taken to cover the remaining distance will be:
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Total time taken to travel=440/55=8 hours
if we are to use the equation given by:
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time taken will be found by solving for h, thus we shall have:
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3 years ago
If I = PRT/100, MAKE R THE SUBJECT OF THE FORMULA.​
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Answer:

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Step-by-step explanation:

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\frac{100I}{PT} = R

6 0
3 years ago
Why can't irrational numbers be whole numbers
meriva
Irrational numbers cannot be represented by a ratio of two integers.

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5 0
4 years ago
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Answer:

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Step-by-step explanation:

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