Vocabulary
comparison of two numbers by division
ratio
12:24 is equal to _____
Give an example of a proportion lower than and one that is higher than!
4:8, etc
24:48, etc
name the first number of a ratio
antecedent
Free points regardless of if you got it right or wrong!
5:25 to decimal
0.20
name the second number of a ratio
consequent
free points regardless of if you got it right or wrong!
number representing part of a whole
fraction
Find the unit rate: 24 lights on 4 streets
5 lights on each street
Explain how to make an equivalent ratio
Multiply both numbers on the ratio by the same number!
solve for n
4/16 = n/8
three ways to write a ratio--write it on the board on the board!
a:b
a to b
a/b
two fractions that are different but equal
proportion
solve for n: 20/5 = n/10
n = 40
Equivalent ratio to 3/18
1/6
7:70 to a fraction then to a percent
1/10
10%
60/100 to the most simplified ratio possible
3/5
comparison of two related quantities
rate
Define what MPH means & what category it falls under
miles per hour
unit rate
Equivalent ratio of 7/112
1/16
is this correct?
4/6 = 12/16
Find the unit rate: 36 pencils for 12 students
3 pencils per student
how much of _______ over how much of 1 unit of _________
unit rate
Do 16/32 and 8/24 form a proportional relationship? Show the problem on the board.
No
There are 24 fruits. 6 of them are oranges. The rest are strawberries. What is the ratios of strawberries to the total?
18:24
Formula to find a proportional relationship
Explain what each variable stands for or half points!
y = kx
y: number on y axis
k: constant ratio of y to x
x: number on x axis
5:4 is the proportion of cornstarch to water to make 1 batch of oobleck. What is the proportion to make 7 batches?
35:28