Inequities and Equations unit test

Is 5 a solution to the equation 5 * m = 17?

• Yes

• No

Carla roller skates 3 miles each day for d days. She completed a total of 60 miles. Write and solve an equation to determine how many days she roller skated.

• d = 20 days.

• d = 15 days.

• d = 25 days.

• d = 10 days.

Write an equation to represent "four less than n is equal to ten."

• n - 4 = 10.

• n + 4 = 10.

• 4 - n = 10.

• n = 4 - 10.

Write an equation to represent "fourteen more than a number is twenty."

• x + 14 = 20.

• x - 14 = 20.

• 14 - x = 20.

• x + 20 = 14.

Is 15 a solution to the equation x - 7 = 8?

• Yes

• No

Identify the independent and dependent variable: The cost of filling up a tank of gas and the number of gallons of gas put in the tank.

• Independent variable: # of gallons, Dependent variable: cost of gas.

• Independent variable: cost of gas, Dependent variable: # of gallons.

• Independent variable: type of gas, Dependent variable: cost of gas.

• Independent variable: # of gallons, Dependent variable: type of gas.

Identify the independent and dependent variable: The number of candy bars sold and the amount of money raised.

• Independent variable: candy bars sold, Dependent variable: money raised.

• Independent variable: money raised, Dependent variable: candy bars sold.

• Independent variable: candy bars sold, Dependent variable: number of candy bars.

• Independent variable: amount of money raised, Dependent variable: candy bars sold.

Is 8x ÷ 2 an expression, equation or inequality?

• Expression

• Equation

• Inequality

Write an inequality: Four is more than a number x.

• 4 > x

• 4 < x

• 4 = x

• x > 4

Write an inequality: She can bring no more than 5 bags on the airplane.

• x ≤ 5

• x < 5

• x ≥ 5

• x > 5