7th Grade Math Semester 1 Review

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, greater than or equal to, or less than or equal to the other.

Front

How do you solve the inequality x - 26 > 65?

Back

Add 26 to both sides to get x > 91.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

How can you identify a proportional relationship from a graph?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin (0,0).

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its area?

Back

Area = 10 cm × 4 cm = 40 cm².

Front

What does it mean to combine like terms in algebra?

Back

Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

Front

What is the result of adding the expressions (3x + 15) + (4x + 13)?

Back

7x + 28.

Front

What is a sample in statistics?

Back

A sample is a subset of a population used to represent the entire group.

Front

How do you find the estimated number of students who ride the bus if 42 out of 60 surveyed do?

Back

Use the proportion: (42/60) × 320 = 224 students.