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ExtremeBDS [4]
3 years ago
13

If y varies inversely as x and x is 6 when y is 13, what is x when y is 8?

Mathematics
2 answers:
guajiro [1.7K]3 years ago
5 0

Answer:

A. 9.75 is the correct answer.

Step-by-step explanation:

Vikki [24]3 years ago
4 0
Y = k/x
13 = k/6
k = 78

y = k/x
8 = 78/x
8x = 78
x = 78/8
x = 9.75
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Step-by-step explanation:

The intermediate value theorem requires for the function for which the intermediate value is calculated, to be continuous in a closed interval [a,b]. Therefore, for the graph of the function shown in your problem, the intermediate value theorem will apply as long as the interval [a,b] does NOT contain "3", which is the x-value where the function shows a discontinuity.

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