z varies jointly with 3x and y. When x = 2 and y = 4, z = 32. Find z when x = 13 and y = 3.
1. Determine the relationship expression:
Since varies jointly with and , we have , where is a constant.
2. Find the value of :
When and , . Substituting these values into the expression gives .
Simplifying, , which is . Solving for , we get .
3. Find when Click "Show Answer" to reveal the answer and analysis
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