Ratios, Proportions, and Unit Rates

What is a Ratio?

• 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

A class has 15 boys and 20 girls. What is the boy:girl ratio in simplest form?

• 4 to 5
• 10 to 13
• 3:4
• 3:5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Patrick has 2 black, 3 red, and 5   white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5
• 1:3
• 3:11
• 3:10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A 12-ounce bottle of shampoo lasts Enrique 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 Weeks
• 24-ounce bottle
• 10.6 Weeks
• 10.6-ounce bottle

Tags

CCSS.6.RP.A.3B

About 13 out of 20 homes have a personal computer. On a street with 60 homes, how many computers would you expect to have?

• 39 Computers
• 4.3 Homes
• 39 Homes
• 4.3 Computers

Tags

CCSS.6.RP.A.3B

A 6-ounce package of fruit snacks contains 45 pieces. How many pieces would you expect in a 10-ounce package?

• 75 Pieces
• 27-ounces
• 27 pieces
• 75-ounces

Tags

CCSS.6.RP.A.3B

A grading machine can grade 48 multiple-choice tests in 1 minute. How long will it take the machine to grade 300 tests?

• 6.25 Min
• 0.16 Tests
• 6.25 Tests
• 0.16 Min

Tags

CCSS.6.RP.A.3B

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 people are in line?

• 32 People
• 32 Min.
• 12.5 Min.
• 12.5 People

Tags

CCSS.HSF-LE.A.1B

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

Tags

CCSS.7.RP.A.2B