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The variable Z is directly proportional to X. When X is 6, has the value of 72. What is the value of Z when X = 13
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The variable Z is directly proportional to X. When X is 6, has the value of 72. What is the value of Z when X = 13

User KMR
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1 Answer

3 votes
6 / 72 = 13 / z
cross multiply
(6)(z) = (72)(13)
6z = 936
z = 936/6
z = 156 <==
User Jcklie
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7.9k points
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