Question 751191
If y varies inversely as x, and y=18 when x=3, find y when x = 8.
y=____(simplify your answer.)
.
Inverse variation:
y = k/x
using:y=18 when x=3 we can find k:
18 = k/3
54 = k
.
our equation:
y = 54/x
now we can answer:find y when x = 8
y = 54/8
y = 6.75