Math Ratios and Rates

• 35 students

• 45 students

• 80

• 75

GEMS students in the 7th grade were asked what was their favorite subject was in school where math got 70 votes. If the ratio of science to math is

13 :14, how many votes did science get?

What is the ratio of red apples to green apples

• 7 to 3

• 4 to 7

• 4 to 3

• 3 to 4

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

Angie purchased 25 fruits in all. 10 were apples and the rest were peaches. What is the ratio of peaches to apples? (In simplest form)

• 3/2

• 25/10

• 10/25

• 2/3

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Four pounds of bananas cost $6.  What is the cost per pound of bananas?

• $24 per pound

• $1.50 per pound

• $1 per pound

• $6 per pound

The ratio of green counters to blue counters is 4 : 5

What fraction of the counters are green?

• ⁵/₄

• ⁴/₅

• ⁴/₉

• ⁵/₉

Which is the "better buy"?  A 12 ounce can of corn for $1.92 of  a 20 ounce can of corn for $3.00?

• They are the same

• The  20 ounce can

• The 12 ounce can

What is 12% of 40?

• 5

• 4.8

• 4

• 12