7th Grade Math Review 1

Front

What is a proportional relationship?

Back

A proportional relationship is one in which two quantities maintain a constant ratio or rate. For example, if y is proportional to x, then y = kx for some constant k.

Front

Back

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity. For example, $10 per student is a unit rate.

Front

How do you calculate simple interest?

Back

Simple interest can be calculated using the formula: Interest = Principal × Rate × Time.

Front

If Maria borrowed $3,000 at a simple interest rate of 4% per year, how much interest will she pay after 4 years?

Back

The interest is $480, so she will repay a total of $3,480.

Front

Solve the proportion: 4/8 = x/16. What is x?

Back

Front

What is the formula for finding the area of a rectangle?

Back

Area = Length × Width.

Front

What is the difference between a rational and an irrational number?

Back

A rational number can be expressed as a fraction of two integers, while an irrational number cannot be expressed as a simple fraction.

Front

What is the Pythagorean theorem?

Back

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise over the run (change in y over change in x).