If y varies direrectly as x and inversely as the square of z. y=52 when x=16 and z=2. find y when x=18 and z=3.

y = 26

Step-by-step explanation:

Given y varies directly as x and inversely as the square of z then the equation relating them is

y = ← k is the constant of variation

To find k use the condition y = 52, x = 16, z = 2

k = = = 13

y = ← equation of variation

When x = 18 and z = 3, then

y = = 26

if farmer matt works for 8 hours a day, how many days will it take him to completely plant 12 rows of crops? each batch of cookies needs 3/4 cups of sugar.

step-by-step explanation:

16 would be your answer