Proportions

Front

What is a proportion?

Back

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

Front

How do you set up a proportion to solve a problem?

Back

To set up a proportion, you can use the formula a/b = c/d, where a and b are the first ratio, and c and d are the second ratio.

Front

What is the cross-multiplication method in solving proportions?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio, and setting the two products equal to each other.

Front

If 3 pounds of meat cost $6, what is the cost per pound?

Back

The cost per pound is $2, calculated by dividing $6 by 3.

Front

How do you find an unknown in a proportion?

Back

You can find an unknown in a proportion by cross-multiplying and then solving for the unknown variable.

Front

What is the relationship between ratios and proportions?

Back

Ratios are comparisons of two quantities, while proportions show that two ratios are equivalent.

Front

How can proportions be used in real-life situations?

Back

Proportions can be used in various real-life situations, such as cooking, budgeting, and scaling recipes.

Front

If 5 ice cream cones are sold for every 3 brownies, how would you express this as a ratio?

Back

The ratio of ice cream cones to brownies is 5:3.

Front

What is the formula to find the total cost when given a unit price and quantity?

Back

Total cost = unit price × quantity.

Front

How do you convert a ratio to a fraction?

Back

To convert a ratio to a fraction, simply write the first quantity as the numerator and the second quantity as the denominator.