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o-na [289]
3 years ago
14

Justin runs at a constant rate, traveling 17km in 2 hours. Write an equation that shows the relationship between the distance he

runs (d) in kilometers and the time he spends running (h) in hours.
Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0

17 km  / 2 hours = 8.5 km per hour

equation:  d = 8.5h

VikaD [51]3 years ago
5 0

Answer:

d=8.5h

Step by Step Explanation:

I just did Khan Academy.

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3 years ago
A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
alexdok [17]

Answer:

about 70.0 mph

Step-by-step explanation:

speed = distance/time

(300 ft)/(2.92 s)·(1 mi)/(5280 ft)·(3600 s)/(1 h) = (300·3600/(2.92·5280)) mi/h

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3 years ago
A shelf is designed so it will fit in a 90º corner between two walls. The shelf has dimensions, rounded to the nearest tenth, as
den301095 [7]

Answer:

Yes, it will fit snugly in a 90º corner

Step-by-step explanation:

To do this, we simply need to check if the given sides of the shelf is right-angled.

So, we have:

Hypotenuse = \sqrt{242

Side\ 1 = Side\ 2 = 11

To check for right-angle triangle, we make use of:

Side\ 1^2 + Side\ 2^2 = Hypotenuse^2

This gives:

11^2 + 11^2 = \sqrt{242}^2

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