katherinestewa1 katherinestewa1

05-11-2018
Mathematics

contestada

If y varies inversely as x and y is 6 when x is 12, what is x when y is 14.4? a. 5 b. 0.4 c. 9.6 d. 2.5 Please select the best answer from the choices provided

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jimrgrant1 jimrgrant1

05-11-2018

a

given y varies inversely as x then the constant of variation k is

k = xy = 12 × 6 = 72, hence

y = [tex]\frac{72}{x}[/tex]

when y = 14.4 then

x = [tex]\frac{72}{y}[/tex] = [tex]\frac{72}{14.4}[/tex] = 5

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staggerstayco staggerstayco

19-04-2021

Answer:

A. 5

Step-by-step explanation:

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