sepdentalcare3127 sepdentalcare3127
  • 16-04-2019
  • Mathematics
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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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levineuwirth
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  • 16-04-2019
Make a proportion
6/18 = 10/z
Cross multiply
180 = 6z
180/6 = z
Z = 30
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