A model airplane flies 22 feet in 2 seconds what is the airplanes speed in miles per hour

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If the model airplanes flies 22 feet in 2 seconds, it travels 11 feet in 1 second.

There are 60 seconds in one minute. We multiply 11 by 60, giving 660 feet in 1 minute.

There are 60 minutes in one hour. We multiply 660 by 60, giving us 39600 feet in 1 hour.

There are 5280 feet in a mile. To find our speed in mph, we divide 39600 by 5280, giving us 7.5 mph.

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8

step-by-step explanation:

exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.