3. The variable z varies jointly with x and y. Use the given values to

1.	3. The variable z varies jointly with x and y. Use the given values to writean equation relating x, y and z. Then find z when x = 4.a. x = ⅜, y = 16/17, z = 3/2b. x = ⅚, y = 3/10, z = 8
Answer» Step-by-step EXPLANATION: The variable z varies JOINTLY with x and y. USE the given VALUES to write an equation relating x, y and z. z=kxy, k is coefficient Find z when x = 4 z=4ky a. x = ⅜, y = 16/17, z = 3/2 3/2=k3/816/7 3/2=k6/7 k=62/37 k=4/7* b. x = ⅚, y = 3/10, z = 8 8=k5/63/10 8=k1/2 k=82 k=16

3. The variable z varies jointly with x and y. Use the given values to writean equation relating x, y and z. Then find z when x = 4.a. x = ⅜, y = 16/17, z = 3/2b. x = ⅚, y = 3/10, z = 8

Answer»

Step-by-step EXPLANATION:

The variable z varies JOINTLY with x and y. USE the given VALUES to write

an equation relating x, y and z.

z=kxy, k is coefficient

Find z when x = 4

z=4ky

a. x = ⅜, y = 16/17, z = 3/2

3/2=k*3/8*16/7
3/2=k*6/7
k=6*2/3*7
k=4/7

b. x = ⅚, y = 3/10, z = 8

8=k*5/6*3/10
8=k*1/2
k=8*2
k=16

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3. The variable z varies jointly with x and y. Use the given values to writean equation relating x, y and z. Then find z when x = 4.a. x = ⅜, y = 16/17, z = 3/2b. x = ⅚, y = 3/10, z = 8

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