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stiks02 [169]
3 years ago
7

y varies jointly as x and z, and y = 32 m, x = 6 m, and z = 8 m. What is the value of y when x = 5 m and z = 12 m

Mathematics
2 answers:
elixir [45]3 years ago
5 0

Answer:

y = 40

Step-by-step explanation:

If y varies jointly as x and z, the equation is

y = k* xz

We know y  x  and z  so we can substitute them in

32 = k * 6*8

32 = k*48

Divide by 48

32/48 = k*48/48

32/48 =k

2/3 =


So the equation is y =2/3  x*z

Since we know x=5 and z =12, we can find y

y = 2/3 * 5 * 12

y = 40

Fantom [35]3 years ago
3 0
We are given y = kxz
We also know 32 = k×6×8, so k = 32/48 = 2/3.
We are then asked to solve:

y =  \frac{2}{3}  \times 5 \times 12 = 40
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