U3 Lesson 13 Flashcard Review

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

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different.

Front

If there are 20 blonde hair teachers and 12 brown hair teachers, what is the ratio of blonde to brown hair teachers?

Back

5:3

Front

What is the formula to find the number of items over time if the rate is constant?

Back

Number of items = Rate × Time.

Front

If a student reads 3 books every 2 weeks, how many books will they read in 18 weeks?

Back

27 books.

Front

What is a double number line?

Back

A double number line is a visual representation that shows two sets of numbers and their relationships, often used to illustrate ratios.

Front

In a double number line, if 8 loaves of bread require 12 cups of raisins, how many cups are needed for 1 loaf?

Back

1.5 cups of raisins.

Front

What does it mean to record progress?

Back

Recording progress means keeping track of achievements or changes over time, often in a systematic way.

Front

How can you determine the number of items produced at a specific time from a graph?

Back

By locating the time on the x-axis and finding the corresponding value on the y-axis.