Ratios and Rates word problems

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

What is a rate?

Back

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

Front

How do you convert currency using an exchange rate?

Back

To convert currency, multiply the amount of money you have by the exchange rate.

Front

If the exchange rate is 5 USD to 138 JMD, how much JMD do you get for 35 USD?

Back

You get 966 JMD.

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

Cross-multiply the terms and solve for the unknown variable.

Front

If hamburger meat costs $18 for 3 pounds, what is the cost per pound?

Back

The cost per pound is $6.

Front

How do you find the total cost when buying in bulk?

Back

Multiply the unit price by the total number of units purchased.

Front

If a shop produces 37 swimsuits every 13 minutes, how do you find the production rate per minute?

Back

Divide the number of swimsuits by the number of minutes: 37 swimsuits / 13 minutes = 2.85 swimsuits per minute.

Front

How many swimsuits are produced in 78 minutes at the rate of 2.85 swimsuits per minute?

Back

222 swimsuits.