Ratios, Rate, and Unit Rates
Write the ratio of wins to losses in 3 way for a baseball team that won 7 out of 15 games.
7:8 7/8 7 to 8
Do these ratios form a proportion? 8/18 and 20/45
Yes
What is 12% of 33?
3.96
Write 62.5% as a decimal.
.625
Find the unit rate for a price of $9.87 for 3 gallons of gas.
$3.29/gallon
Solve the proportion. 24/17 = 108/x
x = 76.5
What is 120% of 34?
40.8
Write 0.009 as a percent
.9%
Which is the better buy for juice: 48 fl. oz. for $2.15 or 64 fl. oz. for $2.89?
48 fl. oz for .04/oz
Find the missing side of the kites: (use the number 19 and 42 for one kite and x and 54.6 for the other kite)
x = 24.7
5 is what percent of 15?
33 1/3%
Write 37.5% as a fraction.
3/8
The 64 oz bottle of Stain-Free detergent is on sale this week for $4.99. The 36 oz bottle is not on sale. It cost $3.29. Which is the better buy?
64 oz
A scale is 1/2 inch : 10 ft. Find the length on the drawing for 1 1/2 feet.
.075 in.
A care dealer advertised "All cars 19% off sticker price ever day!" A buyer pays $10,940.95 for a car on the lot. What is the sticker price?
$13,495
Write 10/12 as a percent.
83.3%
A school has 35 teachers and 945 students. What is the student-to-teacher ratio? Write your answer as a unit rate.
27 students/teacher
The cities of Indianapolis, Indiana and Brownsville, Teas are 1,166 miles apart. A map of the United States has a scale of 1 in: 250 mi. How far apart are the cities on the map?
4.7 in.
The population of Fresno, CA was 578,000 in 1980. In 1994, the population was 835,000. What is the percent of change?
44.5%
The Deluxe brand vitamin tablet supplies 0.5% of the recommended daily allowance for phosphorus. Write the percent as a fraction and a decimal.
1/200 and .005