Question

EASY QUESTION 100 Points Topic: Multiplying and dividing fractions

Answer 1

Answer:

4 times as fast

Step-by-step explanation:

To determine how many time as fast, take the rate up and divide by the rate down

63 minutes

--------------------

15 minute 45 seconds

But we need to be all in the same units  so change second to minutes by dividing by 60

63 minutes

--------------------

15 minute 45/60 minutes

63 minutes

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15.75  minute

4 times

Answer 2

Answer:

4 times as fast

Step-by-step explanation:

We need to first convert everything to the same units. Let's change it to seconds. There are 60 seconds in a minute, so 63 minutes is 63 * 60 = 3780 seconds and 15 minutes, 45 seconds is 15 * 60 + 45 = 945 seconds.

Now, in order to find how many times as fast the rate going up was than the rate going down was, we divide the ascending rate by the descending rate:

3780 / 945 = 4

The answer is thus 4 times as fast.