24-25 G7 Unit 3 Test Review - Ratios and Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you calculate simple interest?

Back

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

Front

What is the formula for finding the constant of proportionality?

Back

The constant of proportionality can be found by dividing the dependent variable by the independent variable in a proportional relationship.

Front

If Sarah invested $5,000 at an interest rate of 5%, how much interest does she earn in one year?

Back

$250

Front

What is a commission?

Back

A commission is a fee paid to an employee based on the sales they make, usually expressed as a percentage of the sale.

Front

How do you find the total amount after earning interest?

Back

Total Amount = Principal + Interest.

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if the ratio between two quantities remains constant.

Front

If Diego deposited $12,000 at an 8% interest rate, how much interest does he earn in one year?

Back

$960

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.