Ratios
Define a ratio
What is: a relationship in which for every x quantity, there are y units of another quantity; the relation between 2 amounts
Define unit rate
Unit rate is a rate in which the comparison is to 1 unit
Define a percent
A percent is a rate in which the first term is compared to 100.
Define conversion factor
A conversion factor is a rate that compares equivalent measures.
Which is more: 2 liters or 2,000 mililiters?
They are equal.
Name one of the 3 ways to write a ratio
x to y
x/y
x:y
Find the value of n
Miles: 45 135
Hours: 4 n
n=12 hours
Find the percent of 1/5
20%
How many quarts are in 1 gallon?
4 quarts = 1 gallon
What is 70% of 70?
49
Write the ratio of the number of dogs to the total number of pets if there are 14 cats and 17 dogs
17:31
17/31
17 to 31
Jenny packaged 108 eggs in 9 cartons. Write this statement as a rate.
108 eggs/9 cartons
How would you write 1.75 as a percent?
175%
How many ounces are in 1 pound?
16 ounces
25% of 96 = ?
24
In Joe's fish tank, there are 9 goldfish and 10 snails. How does the ratio 10:19 describe Joe's fish tank?
The ratio 10:19 compares the number of snails to the total number of animals.
Anna Maria read 40 pages in 60 minutes. What is her unit rate in pages per minute?
2/3 pages per minute or 0.67 pages per minute
What percent of people prefer Bright White Toothpaste if 17 out of 80 people said that they prefer it?
21.25%
Jonah has 15 gallons of water for a camping trip. How many quarts of water does he have?
Jonah has 60 quarts of water.
13% of $60 = ?
$7.80
The ratio of blue cards to green cards is 2 to 5. There are 8 blue cards. Determine the number of green cards.
There are 20 green cards.
A bathroom shower streams 5 gallons of water in 2 minutes. Find the unit rate for gallons per minute.
2.5 gallons per minute
Teddy's friend Jacob spends 5/8 of his homework time doing math problems. What is 5/8 as a percent?
62.5%
The alpine pika is a small mammal in the rabbit family. How much does the alpine pika weigh in pounds if it is 10 ounces?
The alpine pika weighs 0.625 pounds.
What is 8% of $37?
$2.96