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The variable Z is directly proportional to X. When X is 6, Z has the value 18. What is the value of Z when X=10
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3 votes
The variable Z is directly proportional to X. When X is 6, Z has the value 18. What is the value of Z when X=10

User LeopardShark
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1 Answer

2 votes
Make a proportion
6/18 = 10/z
Cross multiply
180 = 6z
180/6 = z
Z = 30
User Dspfnder
by
6.4k points
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