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svlad2 [7]
3 years ago
5

Suppose x varies directly with y and inversely with z. If x=14 when y=49 and z=7, then what is x when y=18 and z=6?

Mathematics
1 answer:
ss7ja [257]3 years ago
3 0

Answer:

6

Step-by-step explanation:

x varies directly with y and inversely with z:

x = ky/z

x = 14 when y = 49 and z = 7.

14 = k (49)/(7)

k = 2

When y = 18 and z = 6:

x = 2 (18)/(6)

x = 6

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Step-by-step explanation:

According to remainder theorem, you can know the remainder of these polynomials if you plug in x = -6 into them.

<em>So we will plug in -6 into x of all the polynomials ( A through D) and see which one equals -3.</em>

<em />

<em>For A:</em>

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The only function that has a remainder of -3 when divided by x + 6 is the fourth one, answer choice D.

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Step-by-step explanation:

see the attached figure to better understand the problem

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Step-by-step explanation:

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