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OpenStudy (anonymous):
y varies jointly with p and q. When p = 5 and q = 2, y = 80. Find y when p = 4 and q = 5
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OpenStudy (asnaseer):
do you know how to represent direct variation?
hero (hero):
I think the function is \(\ y = kpq\)
OpenStudy (asnaseer):
Hero has typed up the equation for you ^^^
hero (hero):
You have to find k
OpenStudy (anonymous):
Got it thanks:D
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hero (hero):
Okay, I will post the solution. Basically, you have to make two equations based on the function I posted above. The first equation will be used to find the value of k. The second equation will be used to find the value of y.
OpenStudy (anonymous):
The solution is 160:D I got it
hero (hero):
Oh, okay. Great :D
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