SOLUTION: y varies jointly as a and b and inversely as the square root of c. y=48 when a=4, b=8 and c=36. Find y when a=2, b=7 and c=16.
a. 7.875
b. 31.5
c. 3.5
d. 504
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Question 155220: y varies jointly as a and b and inversely as the square root of c. y=48 when a=4, b=8 and c=36. Find y when a=2, b=7 and c=16.
a. 7.875
b. 31.5
c. 3.5
d. 504
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
y varies jointly as a and b and inversely as the square root of c
then
y=48 when a=4, b=8 and c=36.
48=k(32)/6
then k=48(6)/32=9
then
a=2, b=7 and c=16.
then
correct option is b)
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