Ratios and Proportions
Write the two other ways to express the ratio 4 to 11.
4:11
4/11
200% of 0.5 is what number?
1
Change 0.567 to a percent
56.7%
What is the percent increase from 87 to 93?
7%
Write 4 1/4% as a decimal.
4.25
Solve the equation using cross products.
x/12 = 30/72
x = 5
75% of 874 is what number?
655.5
Change 1/4 to a percent
0.25
What is the percent decrease from 168 to 46?
73%
Round to the hundredths place: (1.04)3
1.12
Solve the equation using cross products.
4/15 = x/75
x = 20
A store pays $10 for a baseball shirt. the percent of markup is 70%. Find the selling price of the shirt.
$17
Change 93.5% to a decimal
0.935
What is the percent of increase from 120 to 200?
67%
Round to the nearest hundredth place: (1.025)2
1.05
On the volleyball team, 7 out of every 9 players weigh 125 pounds or more. If 42 players weigh more than 125 pounds, how many players are on the team?
54 players
Amazon's percent of markup is 65%. A video game cost Amazon $30. Find the selling price.
$50
Change 7% to a decimal
0.07
An office worker made 255 copies of documents on Monday and 425 copies on Tuesday. What was the percentage of increase?
Hint: Find the amount of increase first, then write as a proportion and use cross products.
67%
A bank advertised an interest rate on a savings account of 3.5% annually. How much did each person have at the end of two years? Round your answers to the nearest hundredth.
Original Deposit: $250
A = P(1 + i)n
$251.07
During bowling league, Jessica averaged one strike for every five frames she bowled. If she bowled 84 strikes, how many frames did she bowl?
420 frames
A pair of shoes normally sells for $49 at the shoe store. If there is a 20% off sale, find the discount and the sale price.
discount = $10
sale price = $39
Change .12345 to a percent
12.345%
A flock of 63 geese landed at a pond. Later only 41 geese remained. What was the percent of decrease?
Hint: Find the amount of decrease first, then write as a proportion and use cross products
34%
On your 10th birthday, you deposit $108 into an account that pays an average of 12% interest compounded annually. What will be the value of the account on your 15th birthday?
A = P (1 + i)n
$10,049.50