Proportion Flashcard

Front

What is a proportion?

Back

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

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then isolate the variable.

Front

If 4 cans of soup cost $2.60, how much will 10 cans cost?

Back

$6.50

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio.

Front

Back

c = 8

Front

If 5 apples cost 80 cents, what is the cost of 20 apples?

Back

$3.20

Front

What is the formula for finding the cost per item?

Back

Cost per item = Total cost / Number of items.

Front

What does it mean if two ratios are equivalent?

Back

It means that they represent the same relationship between quantities.

Front

How can you check if two fractions are equivalent?

Back

Cross-multiply and see if the products are equal.

Front

What is the relationship between direct variation and proportions?

Back

Direct variation describes a relationship where one variable is a constant multiple of another, which can be expressed as a proportion.