A gym teacher orders 42 tennis balls. Each package contains 3 tennis balls. Which of the following equations represents the number x of packages?
3x=42
20
A company has a profit of $750 this week. They plan to take out $95 a week. B company has $50 and they plan to deposit $80 a week. How many weeks will it take for the companies to have the same amount of money?
4 weeks
25
The sum of a number y and 3 is −8.
y + 3 = -8 y = -11
15
Hope has 45 cars on her used car lot. She adds 5 cars each week. Jake has 60 cars on his car lot and add 2 cars each weeks. Write an inequality to show how many weeks it will take so that Hope has at least as many cars as Jake.
45+5x (greater than or equal to) 60+2x
5
Solve.
x = 10
20
Solve.
x = -21
20
When solving the equation 4x + 1 = −11, what is the first step?
Subtract 1 from both sides of the equation.
10
Solve. −3x + 5 = 2
x = 1
15
Solve.
x = 8
15
Match the equation with the first step to solve it. 4 + 4n = −12