SOLUTION: Heyy there. Plz help me with this problem for the Sat's.
If y is inversely proportional to x and directly proportional to z, and x=4 and z=8 when y=10, what is the value of x+z
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-> SOLUTION: Heyy there. Plz help me with this problem for the Sat's.
If y is inversely proportional to x and directly proportional to z, and x=4 and z=8 when y=10, what is the value of x+z
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Question 772634: Heyy there. Plz help me with this problem for the Sat's.
If y is inversely proportional to x and directly proportional to z, and x=4 and z=8 when y=10, what is the value of x+z when y=20? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If y is inversely proportional to x and directly proportional to z
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y = k*z/x
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Solve for "k" using "x=4 and z=8 when y=10"
10 = k*8/4
k = 10/2 = 5
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Equation:
y = 5z/x
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What is the value of x+z when y=20?
20 = 5z/x
z/x = 4
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x+z could be a variety of values
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Cheers,
Stan H.
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