Question: Use the four-step procedure for solving variation problems given on page 445 to solve Exercises 110. y varies jointly as x and z. y =

Use the four-step procedure for solving variation problems given on page 445 to solve Exercises 1–10.

y varies jointly as x and z. y = 25 when x = 2 and z = 5. Find y when x = 8 and z = 12.

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