Proportion word problems

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 word problem?

Back

To set up a proportion, identify the two ratios involved in the problem and set them equal to each other.

Front

What is the formula to find the percent grade from correct answers?

Back

Percent grade = (Number of correct answers / Total number of problems) x 100.

Front

How do you convert a ratio to a percentage?

Back

To convert a ratio to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is the relationship between distance, rate, and time?

Back

The relationship is defined by the formula: Distance = Rate x Time.

Front

How do you find the actual length from a scale drawing?

Back

To find the actual length, use the scale ratio to set up a proportion and solve for the unknown length.

Front

What is the unit rate?

Back

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

Front

How do you solve for an unknown in a proportion?

Back

Cross-multiply the known values and then divide to isolate the unknown.

Front

What is the significance of equivalent ratios in solving word problems?

Back

Equivalent ratios help to establish relationships between different quantities, allowing for the solution of unknown values.

Front

How can you apply proportions to real-life situations?

Back

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