Ratios
There are 175 people in the school. There are 75 female students and 60 male students. There are 40 adults. What is the ratio of students to adults?
135 to 40
Tony made 20 free throws in 4 days. How many free throws were made each day?
5
The pizza place baked 40 pizzas in 60 minutes. How many pizzas did they bake in 180 minutes?
120
A bar model, is a pictorial representation of ratios
tape diagram
How many inches are there in 1 yard?
36 inches
12 inches=1 foot
3 feet=1 yard
True or false 4 to 7 is equivalent to 12 to 28.
False
Jessica bakes 112 muffins in 7 batches. How many muffins does each batch contain?
16
To bake brownies you need 17 cups of flour for 24 cups of water. How many cups of flour do you need if you have 72 cups of flour?
51 cups
ratios that represent the same fractional number, value, or measure
equivalent ratio
I graded 280 homework papers in 7 days. What is the ratio of papers graded in 1 day?
40:1
Jack read 5 pages in his book on Monday, 7 on Wednesday, 4 on Thursday and 9 on Friday. What is the ratio of pages read on Monday and Thursday to Wednesday and Friday.
9 to 16
2 containers have 10 gallons. How many quarts are in 1 container?
hint 4 quarts in 1 gallon
20 quarts
Most tv shows use 14 minutes of every hour for commercials, leaving 36 minutes for the show. What would the rate for for a 30 minute show?
7 minutes
A structured list of equivalent (equal value) ratios that helps us understand the relationship between the ratios and the numbers.
ratio table
There are 220 students in 10 classes. What is unit rate on students to classes?
22 to 1
1 to 9
2 to 18
3 to 27
4 to 36
8 to ???
72
Henry is an excellent reader. He read 90 pages in half-an-hour. How many pages has Henry read per minute?
3 pages per minute
Lemoyne College has a ratio of boys to girls of 3 to 7. If there are 200 more girls than boys , how many boys are there?
150 to 350
A two-dimensional number line where the vertical line is called the y-axis and the horizontal is called the x-axis.
coordinate plane
Tony mowed 80 lawns in 10 days How many lawns will be mow in 25 days?
200 lawns
Correct the mistake
15 to 8
30 to 16
46 to 24
60 to 32
46 should be 45
There are 6 feet for every 2 sidewalks. How many inches are there in each sidewalk?
36 inches
The supermarket has a ratio of 6 boxes to 9 bags in the store. If there are 150 more bags than boxes, then how many boxes and bags are there?
450 bags
300 boxes
How much of something per 1 unit of something else.
unit rate
Cookie Monster ate 48 cookies in 6 days. Give 3 equivalent ratios.
answers will vary.