Ratios Rates and Proportions

Solve: 6/14 = 21/m

• m=48

• m=15

• m=49

• m=25

Do the following ratios form a proportion: 8/24 and 6/16

• yes 

• no

• not sure

A job pays $56 for 8 hours of work.  How much money does the job pay per hour?

• $7 per hour

• $8 per hour

• $6 per hour

• $7.50 per hour

Nate scores 84 points in 6 games.  How many points per game does Nate score?

• 12.5 points

• 16 points

• 14 points

• 84 points

Determine if the ratios are proportional.
4/5 and 15/20

• Yes

• No

Jenny drives 265 miles in 5 hours.  What is her average rate of speed in miles per hour?

• 58 mph

• 62 mph

• 66 mph

• 53 mph

What is a Ratio?

• Is a comparison of two quantities

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

• A rate with a denominator of one

• Two decimals that can be multiplied

State the ratios of 6 days : 2 weeks : 8 days in form a : b : c .

• 3 : 7 : 4

• 2 : 7 : 4

• 3 : 7 : 5

• 6 : 14 : 8

Given m : n = 9 : 5, find the value of n when m = 81

• 35

• 45

• 65

• 60

Given a : b = 3 : 10, find the value of b if a = 21.

• 70

• 40

• 50

• 60