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finlep [7]
3 years ago
9

Susan runs 22 km in 2 hours and 45 minutes. What is her average speed in km an hour? Explain your answer please!

Mathematics
1 answer:
Tpy6a [65]3 years ago
4 0

Answer:

22km= 2 hours and 45 mins

To find speed: Distance/Time

22/2.75 = 8

Your answer 8km/h

Step-by-step explanation: When finding speed, the formula is always distance divided by time. 45 minutes of 60 minutes is 3/4 of an hour, and 3/4 is 0.75 is decimal. So you add the 2 + .75, and you'll get 2.75. After you convert the time, you begin dividing and you'll get your answer!

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Answer:

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Y: height (in feet)

X: time (in years)

Step-by-step explanation:

Height = 8 + 5(t/2)

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Y = 2.5X + 8

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3 years ago
At 1 p.m., the number of cars in a parking lot is 78. Given the formula found in the first part of the question, An=78⋅1.09n, es
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Answer:

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