Ratios and Rates Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b'.

Front

How do you set up a proportion?

Back

A proportion is an equation that states that two ratios are equal. To set it up, you can use the format a/b = c/d, where a and b are the first ratio and c and d are the second ratio.

Front

If a concession stand serves hot dogs and hamburgers at a ratio of 3 to 2, how many hamburgers are served if 60 hot dogs are served?

Back

40 hamburgers.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or price per item.

Front

How do you calculate the distance traveled if you know the speed and time?

Back

Distance = Speed × Time.

Front

If a family travels at a speed of 75 miles per hour, how far can they travel in 12 hours?

Back

900 miles.

Front

How do you find the time taken to complete a task at a certain rate?

Back

Time = Total Work / Rate.

Front

If a postal carrier can deliver to 130 houses in 2.5 hours, how long will it take to deliver to 234 houses?

Back

4.5 hours.

Front

What is the formula to convert centimeters to meters?

Back

To convert centimeters to meters, divide the number of centimeters by 100.

Front

How tall is Sulta Kosen in meters if he measures 251 cm?

Back

2.51 meters.