Unit Rates and Ratios

This video tutorial explains unit rates, which are ratios with a denominator of one. It demonstrates how to calculate the unit rate of price per stick of gum and the reverse, sticks per dollar. The process involves dividing both the numerator and denominator by the same number to achieve a denominator of one, providing practical examples to illustrate the concept.

What is a unit rate?

• A ratio with a denominator of one

• A ratio with a numerator of one

• A fraction with a numerator of zero

• A fraction with a denominator of zero

What is the denominator in a unit rate?

• Three

• Zero

• Two

• One

What is the purpose of finding a unit rate?

• To complicate a ratio

• To simplify a ratio

• To increase the ratio

• To decrease the ratio

In the example given, how many sticks of gum are there?

• 20 sticks

• 25 sticks

• 10 sticks

• 15 sticks

What is the cost of 20 sticks of gum in the example?

• $1.75

• $1.00

• $1.25

• $1.50

What is the first step in converting a ratio to a unit rate?

• Multiply both numerator and denominator by the same number

• Divide both numerator and denominator by the same number

• Subtract the denominator from the numerator

• Add the numerator and denominator

What operation is used to convert a ratio to a unit rate?

• Subtraction

• Addition

• Division

• Multiplication

What is the unit rate for the price per stick of gum?

• 0.525 to 1

• 0.825 to 1

• 0.725 to 1

• 0.625 to 1

What does the unit rate 0.625 to 1 represent?

• 6.25 cents per stick

• 62.5 cents per stick

• 0.625 dollars per stick

• 6.25 dollars per stick

How do you find the sticks per dollar?

• Divide the number of sticks by the price

• Add the number of sticks to the price

• Subtract the price from the number of sticks

• Multiply the number of sticks by the price