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Dmitriy789 [7]
3 years ago
8

What value of ‘W’ satisfies 8(w+4)=38+7w A. 8 B.6 C.11 D. 4.5

Mathematics
1 answer:
dlinn [17]3 years ago
5 0
B. 6

Explanation: 8(6+4)= 80
38+ 7(6)= 80
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3 years ago
Read 2 more answers
A plane flew 525 miles in 1.75 hours. Find the average speed of the plane.
ale4655 [162]

We are trying to find the average speed of the plane, which is mph, or \dfrac{\textrm{miles}}{\textrm{hour}}. Using proportions, we can find the average speed of the plane in mph:

\dfrac{525 \,\, \textrm{miles}}{1.75 \,\,\textrm{hours}} = \dfrac{x \,\, \textrm{miles}}{1 \,\,\textrm{hour}}

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\dfrac{525}{1.75} \,\textrm{miles} = x \,\textrm{miles}

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The average speed of the plane is 300 mph.

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