Ratios
Rates and Proportions
Decimals, Fractions, Percents
Percent Increase and Decrease, Discounts and Markups
Review (previous units)
100
What is the ratio of dogs to cats?
2 to 3
2:3
2/3
100
Solve the proportion:
x = 9
100
Write 2/5 as a decimal and a percent
0.4
40%
100
Sam had $785 in his savings account at the beginning of the year. He now has $982. What is the percent of increase?
25% increase
100
Solve:
2(x + 2) - 5 = 3(x + 1)
x = -4
200
Find the equivalent ratio:
2:15 8: ______
60
200
John typed 5 pages in 18 minutes. If he continued at the same rate, how many pages could he type in 60 minutes?
16.67 or 16 2/3 pages
200
What percent of 700 is 364?
52%
200
Jim started his weight loss journey at 322 lbs. He now weighs 260 lbs. What is his percent of decrease in body weight?
19% decrease
200
Graph y= 3x + 1
300
Write the ratio of copies to minutes, in simplest form:
70 copies in 7 minutes
10:1
300
Which car gets better gas mileage?
Car A Car B
miles 86 105
gallon 3 4
Car A
300
36 is 45% of what number?
80
300
You bought a sweatshirt for $25, a pair of jeans for $50, and tennis shoes for $90. Before sales tax, you used a 30% off coupon. Sales tax was 6%. How much did you pay for all three items (including tax).
$146.28
300
Solve:
7x + 3 = 2x + 13
x = 2
400
In a sugar cookie recipe, the ratio of sugar to flour is 2:3. The recipe calls for 6 cups of sugar. How much flour is needed?
9 cups
400
Which is the better buy on apples?
Albertson's Fred Meyer
cost $3.79 $4.49
lbs 2 3
Fred Meyer
400
Order from least to greatest:
1/4 20% 2.5 .75 2/6
20% 1/4 2/6 .75 2.5
400
Patrick bought a pair of tennis shoes for 20% off. The original price was $129. How much did he pay for the shoes?
$103.20
400
Find the mean, median, and mode of the data set:
12, 15, 10, 8, 10, 20, 25
Mean: 14.3
Median: 12
Mode: 10
500
There are a total of 18 bikes. If the ratio of blue bikes to black bikes is 2:4, how many bikes are blue?
6 blue bikes
500
A plane travels 450 miles in 1 hour. How many minutes would it take him to travel 37.5 miles?
5 minutes
500
You, your sister, and your friend each take the same number of shots at a soccer goal. You make 72% of your shots, your sister makes 19/25 of her shots and your friend makes 0.67 of his shots. Who made the fewest shots?
Your friend.
500
Your restaurant bill at Red Robin was $54.79. You left your waitress a 20% tip. How much did you pay in total?
$65.75
500
You flip a coin three times. What is the probability of flipping a heads all three times?
1/8 or 12.5%