Ratios and Rates

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:b'.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate a ratio?

Back

To calculate a ratio, divide the two quantities by their greatest common divisor (GCD) to simplify it.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If an airplane travels 289 miles in 2 hours, how far can it travel in 5 hours?

Back

722.5 miles.

Tags

CCSS.6.RP.A.3B

Front

How many feet are there in 27 yards? (3 feet in 1 yard)

Back

81 feet.

Tags

CCSS.2.MD.A.2

Front

What is 25% of a total quantity?

Back

25% of a total quantity is one quarter of that quantity.

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CCSS.6.RP.A.3C

Front

If there are 124 total fish in a tank and 25% are goldfish, how many goldfish are there?

Back

31 goldfish.

Tags

CCSS.6.RP.A.3C

Front

How do you convert yards to feet?

Back

Multiply the number of yards by 3 to get the equivalent number of feet.

Tags

CCSS.4.MD.A.1

Front

What is the formula to find the total number of items based on a ratio?

Back

Total items = (part of first item / total parts) x total quantity.

Front

If Speedy Construction builds a garage every 28 days, how many garages can they build in 12 weeks?

Back

3 garages.

Tags

CCSS.6.RP.A.3B