An airplane flies with a constant speed of 560 miles per hour. How far can it travel in 4 hours? Sarah rides her bike with a constant speed of 12 miles per hour. How far can she travel in
3 1/2 hours?

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Step-by-step explanation:

If an airplane flies at 560 MPH, then for 4 hours you would want to take 560 x 4. if you do that you will get 2240. So in four hours the plane can travel 2240 miles.

Well for 12 MPH, that’s a full hour but you can easily divide 12 in half to get how long it would take in half an hour. So 12 x 3 is 36 (for the full 3 hours) and then for the 1/2 hour, you would have to do 12 divided by 2 which is 6. so 36 + 6 is 42. so in 3 1/2 hours, Sarah can bike 42 miles.

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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step-by-step explanation: