ACC: 6.4 Writing and Solving Proportions

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 solve for the unknown variable.

Front

What is the formula for finding the unit rate?

Back

The unit rate is found by dividing the quantity by the number of units, expressed as 'quantity per unit'.

Front

If 8 slices of pizza cost $12, what is the cost of one slice?

Back

$1.50

Front

If Alice earns $20.40 in 3 hours, how much does she earn in 1 hour?

Back

$6.80

Front

What is the total score if 45 points is 80% of the test?

Back

56 points

Front

If there are 5 ice cream cones for every 3 brownies, how many cones for 24 brownies?

Back

40 ice cream cones.

Front

What is the relationship between the height of an object and the length of its shadow?

Back

The height of an object and the length of its shadow are proportional.

Front

How do you set up a proportion to find an unknown height using shadows?

Back

Set up the ratio of height to shadow length for the known object equal to the ratio for the unknown object.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.