Rates Ratios and Proportions Review

• y=16

• y=3.43

• y=6.86

• y=48/7

Find the unit price of $6.00 for 8 muffins.

• $0.65 per muffin

• $0.80 per muffin

• $0.70 per muffin

• $0.75 per muffin

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Tommy has a bag of LEGOS.  There are 6 yellow, 3 red, and 8 blue LEGOS.  What is the ratio in simplest form of red to yellow LEGOS?

• 1/2

• 6/3

• 2/1

• 3/6

At the same time of day, a man who is 65 inches tall casts a 70-inch shadow. What is the sonʻs height?

• 91 in

• 98 in

• 25 in

• 26 in

A 7-pack of DVDs costs $23.31. What is the unit price?

• $3.33 per DVD

• $3.03 per DVD

• $2.33 per DVD

• $3.23 per DVD

A ratio that compares two quantities of different units. Like miles per hour, feet per second.

• rate

• ratio

• percent

• fraction

Scale factor

• a number that multiplies the ratio quantities

• a weight

• sum

• decimal