SOLUTION: The variables x and y vary inversely. When x is 10 and y is 7.
If x is 5, then y is ___ ?
I do not understand how to set this up?
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Question 142245: The variables x and y vary inversely. When x is 10 and y is 7.
If x is 5, then y is ___ ?
I do not understand how to set this up?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
Use the model for inverse variation.
The model for direct variation is:
Substitute for and for :
…..
…….
The inverse variation equation that relates and is:
.........substitute for
If is , then is .
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