Determine the equation of joint variation. Then solve for the missing value.

x varies directly with y and z.

x = 400 when y = 8 and z = 10.

Find x when y = 10 and z = 12.

A playground is to build in the shape of a rectangle with a length that is 5 feet less than twice the width. One of the shorter sides of the playground is next to the wall. The plan is to use 440 feet of fencing around the playground.

A table is 3 feet wide. The length of the table can be adjusted as needed. You need at least 24 square feet of space on the table. Write and solve an inequality to represent the minimum length the table should have.

Subtract the following military times: 1919 - 1125

If light travels 671,000,000 miles in one hour how many miles does it travel in one minute?

Barry's mountain bike weighs 6 pounds more than Andy's if their bikes weigh 42 pounds together, How much does Barry's bike weigh

Two balls are drawn in succession out of a box containing 4 red and 3 white balls. Find the probability that at least 1 ball was red, given that the first ball was (A) Replaced before the second draw. (B) Not replaced before the second draw.

Plutonium-240 decays according to the function where Q represents the quantity remaining after t years and k is the decay constant, 0.00011 ... How long will it take 24 grams of plutonium-240 to decay to 20 grams?

Sally has 4 red socks, 6 white socks, and 2 pink socks in her drawer. She randomly pulls a red sock out of the drawer. Then she randomly pulls out another sock from a drawer.

On a number line, the square root of 50 is located between which two integers? between 5 and 6 between 7 and 8 between 25 and 26 between 50 and 51

If the cost of one Brick is $ 0.10 and the labor charges $50 for one wall, what is the total cost of six walls? Write to explain your thinking