Homework to practice for 2.1-2.3 flashcard

Front

What is the definition of equivalent ratios?

Back

Equivalent ratios are two or more ratios that express the same relationship between numbers. For example, the ratios 1:2 and 2:4 are equivalent.

Front

If Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins, are these prices equivalent?

Back

Yes, they are equivalent because both pay $0.50 per muffin.

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Back

Front

What is the formula to calculate distance when speed and time are known?

Back

Distance = Speed × Time.

Front

If you travel at a constant speed of 60 miles per hour for 4 hours, how far do you go?

Back

You go 240 miles, calculated as 60 miles/hour × 4 hours.

Front

What is the definition of rate in terms of reading speed?

Back

Rate is the amount of something (like pages) read per unit of time (like minutes).

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Back

Front

What is a ratio?

Back

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

Front

If the ratio of cats to dogs is 2:3 and there are 60 dogs, how many cats are there?

Back

There are 40 cats, calculated using the ratio 2:3, which means for every 5 animals, 2 are cats.

Front

What is the process to solve for an unknown in a ratio problem?

Back

Set up a proportion based on the known ratio and solve for the unknown quantity.