Ratios
Unit Rates
Proportions
Percent Problems
Tax, Tip, and Discount
100
Express the ratio in simplest form.

15 cats : 50 dogs
3 cats : 10 dogs
100
Express as a unit rate.

96 students in 3 buses
32 students per bus
100
Determine whether the two ratios form a proportion.
6⁄7 , 42⁄49
Yes, they form a proportion.
100

25% of what is 28?

112

100

Kirsten buys a $53 dress when it is on sale for 15% off. What is the new sale price?

$45.05

200
Express the ratio in simplest form.

21 hired to 105 applicants
1 hired to 5 applicants
200
Express as a unit rate.

$44.46 for 13 gallons of gasoline
$3.42 per gallon
200

12/28 = x/ 96 

(round to the nearest tenth)

What is 41.4?

200
What percent of 90 is 63?
70%
200

What is the total cost of a $2099 couch, including a 6.5% sales tax?

What is $2235.44

300
Express the ratio in simplest form.

1 foot : 1 yard
1 foot : 3 feet
300
Express as a unit rate.

103.68 miles in 7.2 hours
14.4 miles per hour
300
Solve the proportion.
5⁄9 = 6⁄x
x = 10.8
300
What is 38% of 60?
22.8
300

A video game costs a store $20 and will mark it up for 35% more than the purchase price. What is the new price?

What is $27?
400
Express the ratio in simplest form.

50 centimeters to 1 meter
1 cm to 2 cm
400
Which is the better buy?

An 8 oz. bottle of shampoo for $5.97 or a 12 oz. bottle for $9.25?
The 8 oz. bottle is cheaper ($.75/oz.)
400
Ryan is making a fruit drink. The directions say to mix 5 cups of water with 2 scoops of powdered fruit mix. How many cups of water should he use with 9 scoops of fruit mix?
22.5 cups of water
400
Paul has a goal to lose 25 lb. He has lost 16 lb.What percent of his goal has he reached?
He has reached 64% of his goal.
400

A store buys bags for $5.25 and marks them up 80%. The store discounts bags that do not sell, at 30% off. Find the sale price of the bags.

$6.62

500
Express the ratio in simplest form.

18 hours to 3 weeks
1 hours to 28 hours
500
Which is the better buy?

The price of a gallon of milk is $4.76 and the price of a quart of milk is $1.39.
The gallon of milk is cheaper. ($1.19 per quart)
500
Solve.
3⁄6 = x-3⁄8
x = 7
500
Suppose that 62.5% of freshmen entering a college graduate from it. If there are 2680 freshmen, how many will graduate from that college?
1,675 freshmen will graduate from that college.
500

Jaycee and Bill went out to eat.  Their bill came to $39.45 before tax.  If there was an 8% tax and they want to leave a 20% tip. How much is their final bill?

What is $50.50?

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