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sasho [114]
3 years ago
12

The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 27 inches,

how long is each spoke? Round your answer to the nearest hundredth.
A. 2.07
B. 8.59 NOT THE ANSWER
C. 2.93
D. 4.30
Mathematics
2 answers:
Ugo [173]3 years ago
8 0

Answer:

D

Step-by-step explanation:

KengaRu [80]3 years ago
6 0
Hello,
Answer D: 4.30 in

The circomference is 27 in=2*π*R
==>R=27/(2π)=4.291834... ≈4.30 (in)
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Answer: the rate of the jet in still air is 685 mph and the rate of the jetstream is 75 mph

Step-by-step explanation:

Let x represent the rate of the jet in still air.

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Distance = speed × time

Flying against the jetstream, a jet travels 3050 miles in 5 hours. This means that the total speed of the jet would be (x - y) mph. Therefore,

3050 = 5(x - y)

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x - y = 610 - - - - - - - - - - - - - -1

Flying with the jetstream, the same jet travels 3800 miles in 4 hours. This means that the total speed of the jet would be (x + y) mph. Therefore,

3800 = 4(x + y)

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x + y = 760 - - - - - - - - - - - - - -2

Adding equation 1 to equation 2, it becomes

2x = 1370

x = 1370/2 = 685mph

Substituting x = 685 into equation 1, it becomes

685 - y = 610

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Step-by-step explanation:

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