Problema Solution
if y varies inversely as x, and y=11 when x=8, find y when x=10.
Answer provided by our tutors
Inverse Variation Formula:
y = k / x
Substitute 8 for x and 11 for y:
11 = k / 8
Solve for k:
(Multiply both sides by 8)
88 = k
New equation:
(Substitute 88 for k)
y = 88 / x
Substitute 10 for x:
y = 88 / 10
Answer:
y = 8.8