SOLUTION: Write a formula that expresses the relationship described below.
P varies jointly as x and y and P = 7 when x = –1 and y = –6.
I'm not sure, but I think it would be P = 6/
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Question 150792: Write a formula that expresses the relationship described below.
P varies jointly as x and y and P = 7 when x = –1 and y = –6.
I'm not sure, but I think it would be P = 6/7xy
Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
plug in P, x and y
7=6/7(-1)(-6)
7=6/42
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Try one of these:
P = 7 when x = –1 and y = –6.
7=-(-1+-6)
7=-(-7)
7=7
or the latter:
(which perhaps is what you meant from the start)
7=7/6 times 6
7=7
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