Module 1 Rates/Unit Rates Flashcard 2024 - 2025 (POST 1.7-1.8)

Front

What is a scale on a map?

Back

A scale on a map is a ratio that represents the relationship between a distance on the map and the actual distance it represents in real life.

Front

If a map scale is 2 inches to 150 miles, how do you find the actual distance for 6 inches on the map?

Back

To find the actual distance, set up a proportion: 2 inches/150 miles = 6 inches/x miles. Cross-multiply and solve for x to find that the actual distance is 450 miles.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a single unit, such as miles per hour or cost per item.

Front

How do you calculate the unit rate from a given quantity?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if 300 miles is driven in 6 hours, the unit rate is 300 miles / 6 hours = 50 miles per hour.

Front

If Alyssa drove 300 miles in 6 hours, how long would it take her to drive 600 miles at the same rate?

Back

It would take her 12 hours to drive 600 miles, as the rate is 50 miles per hour.

Front

How do you find out how many pages Kaylin can read in a different time frame?

Back

Set up a proportion based on her reading rate. If she reads 40 pages in 50 minutes, then in 70 minutes, she can read 56 pages.

Front

What is the formula to find the total cost per item?

Back

Total cost per item = Total cost / Number of items.

Front

If Brand A sells 22 staplers for $330, what is the cost per stapler?

Back

The cost per stapler for Brand A is $330 / 22 = $15.

Front

If Brand B sells 4 staplers for $80, what is the cost per stapler?

Back

The cost per stapler for Brand B is $80 / 4 = $20.

Front

Which brand is the better buy based on cost per stapler?

Back

Brand A is the better buy at $15 per stapler compared to Brand B at $20 per stapler.