Math 7 Mid-Year Review

Front

Evaluate the expression if x = -3 and y = 5: -17 - y²

Back

-42

Front

Write and solve an inequality for a gas tank that holds no more than 14.5 gallons after using 1.5 gallons.

Back

Inequality: x + 1.5 ≤ 14.5; Answer: x ≤ 13

Front

Solve: 3 (x + 1) = -24

Back

x = -9

Front

Divide: −24 ÷ −8

Back

3

Front

The temperature at 6:00 pm was 15°C. The temperature dropped 2°C per hour. What was the temperature at 4:00 am?

Back

-5°C

Front

What is the definition of an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

What is the formula for solving a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting numbers for variables.

Front

What is the result of multiplying two negative numbers?

Back

The result of multiplying two negative numbers is a positive number.