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Brrunno [24]
3 years ago
9

I need to know how to do all 4 of these problems and i'm stuck

Mathematics
1 answer:
aliya0001 [1]3 years ago
6 0
You combine all of your x and then go from there and just start to solve from one side to the other side.
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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.
Igoryamba

Answer:

A

Step-by-step explanation:

Joint variation is given by:

y=kxz

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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:

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The answer is A.

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Step-by-step explanation:

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