Ratios and Ratio Tables
Rates
Comparing Ratios
Percents
Percent Problems
100
What is the ratio of bottles to cans?
2:5
There 2 bottles for every 5 cans.
100
Write unit rate for the situation.
12 cars in 4 days.
There are 3 cars per day.
100
Determine which is a better buy. Be able to explain why.
A is a better buy because.
A 12:4 and B 12:3, You get 4 refills for $12 which is more than 3 refills for $12 or
A 3:1 and B 4:1, You get 1 refill for $3 dollars versus 1 refill for $4
100
Write the fraction or mixed number as a percent.
21/25
84%
100
Find the percent of the number.
80% of 90
72
200
What is the ratio of Tulips to Flowers?
3:5
There are three tulips to five total flowers.
200
Write a unit rate for the situation.
$28.00 dollars saved in 7 days.
$4.00 saved per day.
200
Determine which is a better buy.
B-is the better buy because.
A cost $30 for 36 cans and B cost $27 for 36 cans.
OR ...
200
Write the fraction or mixed number as a percent.
17/20
85%
200
Find the percent of the number.
30% of 50
15
300
Write a rate that represents the situation.
10 liters for every 3 minutes
20 liters for every 6 minutes
30 liters for every 9 minutes
40 minutes for every 12 minutes
50 minutes for every 15 minutes
300
Write a unit rate for the situation.
210 Miles in 3 hours.
70 miles per 1 hour
300
Determine which is a better buy.
B is a better buy because.
B costs $1.75 per pound versus A cost $1.90 per pound.
Or
B-15 pounds cost $26.25 and A-15 pounds cost $28.50
300
Write the fraction or mixed number as a percent.
1 2/5
140%
300
Find the percent of the number.
120% of 75
90
400
Write a rate that represents the situation.
8 quarts for every 5 containers
16 quarts for every 10 containers
24 quarts for every 15 containers
32 quarts for every 20 containers
40 quarts for every 25 containers
400
Write a unit rate for the situation.
$54.00 for 3 tickets.
$18.00 per 1 ticket
400
Which is a better buy?
A 30-pack of toilet paper costs $48.30 and a 32-pack costs $49.60.
32-pack because...
The unit cost of the 32-pack is $1.55 per roll is less than the unit cost of the 30-pack is $1.61 per roll.
400
Write the percent as a fraction or mixed number in simplest form. 34%
17/50
400
Find the whole.
34 is 40% of what number?
85
500
There 48 students in the school band. The ratio of girls to boys is 5:7. How many more boys than girls are in the band?
8
The ratio of girls to boys is 5:7 so each part is
48/12 = 4.
So, there are 5*4 = 20 girls and 7*4 = 28 boys.
500
Write a unit rate for the situation.
880 calories in 8 servings.
110 calories per serving.
500
A 6lb. bag of Starburst costs $12.84 and a 16-lb bag costs $33.92, which is a better buy?
The 16-lb. bag because.
16-lb cost $2.12 per lb. and the 6-lb cost $2.14 per pound.
500
Write the percent as a fraction or mixed number in simplest form. 224%
2 6/25
500
Find the whole.
52 is 130% of what number.
40