The variable z varies jointly with x and y. Use the information to write an equation relating x, y, and z. Then find z when x = 2 and y = 5.
x = 3, y = 4, z = 24
What is
z = 2xy
z = 20
400
Solve
1 - x/(x - 4) = 3/(x + 2)
What is
x = 4/7
500
Your local phone company charges a $65 installation fee and a monthly fee of $32. Let x represent the number of months of phone service.
Write an equation that represents the total Cost, C
What is... C = 32x + 65
500
Simplify the complex fraction
4/(2 + 1/x)
What is
4x/(2x + 1)
500
Divide
(2x^2 + 7x -4)/x^2 - 6x + 9) divided by (x^2 + 8x + 16)/(x^2 + x -12)
What is
(2x - 1)/(x - 3)
500
Write the equation that goes with the following sentence
z varies jointly with y and w and inversely with x