Definitions
Ratio
a comparison of two or more quantities
Three ways you can represent a ratio are:
(use the numbers 2 and 3)
2 to 3
2:3
2/3
Yahir goes to a store and buys 3 bags of skittles for $9. How much does he pay per bag of skittles?
$3
In the problems you compare at least _____ ratio tables
two
Three strategies you can use for these problems are
number lines
ratio tables
tape diagrams
Equivalent ratio
A set of numbers multiplied by the same factor.
Ex. and equivalent ratio of 2:3 is 4:6
Write the ratio of smile faces to money signs to question marks
:) :) :) :) :) :)
$ $ $ $
? ? ?
6:4:2
3:2:1
4 movie tickets cost $48. What is the unit price?
$12
Ms.Smith is making orange soda. She mixes 4 parts orange juice and 5 parts soda water.
Mr. Torres is making orange soda. He mixes 3 parts orange juice and 4 parts soda water.
Who has the fizzier drink?
Torres is fizzier
The ratio of girls to boys in the Spelman is 2 to 3. If there are a total of 30 students. How many girls are in the classroom? How many boys?
12 girls
18 boys
unit rate is the
unit price is the
per is
rate for one
price for one
for each/every
Write a ratio statement of the following:
# # # # #$ $ $ $ $ $
The ratio of # to $ is 5 to 6.
A car travels 50 miles in 2 hours. What is the speed (or unit rate)?
25 miles per hour
Ms.Smith is making orange soda. She mixes 4 parts orange juice and 5 parts soda water.
Mr. Torres is making orange soda. He mixes 3 parts orange juice and 4 parts soda water.
Who has the fizzier drink?
Torres is fizzier
The ratio of girls to boys in the entire 6th grades is 5 to 7. If there are 35 boys. How many students are there in total?
60 students in total