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fiasKO [112]
3 years ago
5

The value of y varies jointly with the values of x and z When x = 4 and z = 10, the value of y is 360.

Mathematics
1 answer:
Igoryamba3 years ago
3 0

Answer:

A

Step-by-step explanation:

Joint variation is given by:

y=kxz

Where k is some constant.

We are given that y = 360 when x = 4 and z = 10. Therefore:

360=k(4)(10)

Solving for k:

40k=360\Rightarrow k=9

Therefore, our equation is:

y=9xz

Then when x = 5 and z = 12:

y=9(5)(12)=540

The answer is A.

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