Ratios and Rates
Conversions
Plain ole Proportions
Percents
Real World Problems
100
A recipe for banana bread calls for 3 bananas for every 6 cups of sugar. What is the ratio of sugar to bananas?
(ALWAYS simplify)
2:1
100
Convert 200 centimeters to meters
(100 cm = 1 meter)
2 meters
100
3/9=7/x
Solve.
x = 21
100
What percent of 40 is 32?
80%
100
Jimmy enlarged the size of a photo to a height of 30 inches. What is the new width if it was originally 6 inches tall and 3 inches wide?
15 inches
200
Which is the better deal?
A: 15 pizzas for $195
B: 10 pizzas for $120
B. $12 per pizza
200
Convert 4.5 minutes to seconds
270 seconds
200
v/8=(-10)/6
v = -13.33
200
What is 63% of 150?
94.5
200
14 golden delicious apples cost $8. How many golden delicious apples can you buy for $4?
7 apples
300
Jorge bought a bag of candy that contains 50 pieces. 30 of those pieces are chocolate and 5 are caramel. Write a ratio that compares the number of chocolate pieces to the number of pieces that are not either chocolate or caramel.
2:1
300
A tower in Canada is about 553 meters tall. How many feet tall is the tower? Round to the nearest foot.
(3.28 feet = 1 meter)
1814 feet
300
(a-2)/9=2/3
a = 8
300
60% of what number is 13.5?
22.5
300
The scale of a map is 1 cm: 15 km. Find the actual distance if the distance on the map is 0.2 cm.
3 km
400
Which is the better deal?
A: 12 ounces of Dr. Pepper for $0.60
B: 20 ounces of Dr. Pepper for $0.95
B: $0.47 or $0.48 per ounce
400
Convert 110 feet per second to miles per hour
(5280 feet = 1 mile; 3600 seconds = 1 hour)
75 miles per hour
400
(2c)/11=(c-3)/4
c = -11
400
What percent of 30 is 75?
250%
400
What is the value of x?
x = 5 m
500
Which is the better deal?
A: 12 dozen cupcakes for $162
B: 10 dozen cupcakes for $135
A. and B. $13.50 per dozen
500
(x+1)/(x-2)=4/7
x = -5
500
A beauty salon buys bottles of styling gel for $4.50 per bottle, and marks up the price by 40%. For what price does the salon sell each bottle?
$6.30
500
You deposited $125 in a savings account that earns a simple interest rate of 1.75% per year. You earned a total of $8.75 in interest. For how long was your money in the account?
4 years