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levacccp [35]
3 years ago
9

Solve the problem as directed. If x and y vary directly, and x = 10 when y = 3, what will be the value of x when y = 9?

Mathematics
2 answers:
Schach [20]3 years ago
8 0
A simple ratio will probably work. 10=3
x=9?
Cross multiply. 3x= 90 This x=30
Vladimir [108]3 years ago
6 0
X will equal 30. If y equals 9, then that means it was multiplied 3 times, so you do the same with x. 10*3=30.
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