Vocab
Ratios
Rates
Percents
Proportional Relationships
100
What is a ratio?
A comparison of two things
100
Write a ratio comparing teen boys to teen girls.
35 to 30
35:30
35/30
100
The Fleet-mobile can go 20 miles on 4.5 gallons of gas. How far could it go on 22.5 gallons?
100 miles
100
While shopping for a Valentines gift, Lib R. Tee found a diamond ring for $100 on sale for 20 % off What is the sale price?
$80
100
Which graph represents a proportional relationship and why?
The graph on the right because it is a straight line, is increasing by a constant rate of 2 and goes through the origin (0,0)
200
What is a rate?
A comparison of two Different Units/variables
200
Write a ratio comparing adult girls who brush to teen girls who brush.
30 to 27
30 : 27
30/27
200
Old Navy is selling 3 t-shirts for $21.75. Find the cost per shirt.
$7.25 per shirt
200
Adult dog food is a mix of 70% chicken and 30% veggies. If you make 2 cups of the dog food mix how many cups of veggies would you use?
0.6 cups of veggies in the dog food mix
200
Does the table represent a proportional relationship and if so write an equation.
Yes it is proportional
C= 2p
$2 per pen
300
What is a unit rate?
A comparison of two quantities where one of the values is one unit.
300
Write a ratio comparing teen boys who sing to teen boys.
5 to 35
5 : 35
5/35
300
At McDonalds, the cook can make 18 Big Mac’s in 4 minutes. How many can he make per minute?
4.5 Big Mac’s per minute
300
DAILY DOUBLE
A 12 pack of Bolda Cola costing $3 are on sale for $2.55. What percent savings is this?
A 15% savings
300
Does the table represent a proportional relationship and if so write an equation.
Yes it is proportional
P= 1.5 times x
$1.50 per shirt
400
What does the term "constant of proportionality" mean?
The constant multiplier that you multiply one variable by to get the value of the other variable.
400
Write a ratio comparing girls who have a pets to boys who have pets.
36 to 26
36:26
36/26
400
Ken and Barbie were exercising. Ken did 27 sit-ups in 3 minutes and Barbie did 30 sit-ups in 3.5 minutes. Who did the most sit-ups per minute?
Ken can do more sit-ups per minute.
400
John’s bought a TV for $400 with 6% sales tax. What are two ways to solve this problem? (think about two different percents)
400 x 1.06= total price
(400 x 0.06) + 400= total price
$424 TOTAL PRICE
400
Does the graph represent a proportional relationship and if so write an equation.
Yes it is proportional
P=10s
10 plants per seed
500
What is a proportional relationship?
When two variables where their ratios are equivalent. Where one variable is always a constant value times the other.
500
write a ratio comparing teen boys who sing & brush to adult girls who sing & brush.
38 to 33
38 : 33
38/33
500
Burt and Ernie are taking a keyboarding test. Burt can type 200 words in 17 minutes. Ernie can type 171 words in 15 minutes. Who is typing faster?
Burt is typing faster.
500
Jenny went out to eat and had a 25% off coupon on her total bill of $55.60. What are two ways to solve this problem?
55.60 x 0.75= total bill
55.60- (55.60 x 0.25)= total bill
$41.70 total bill
500
Does the table represent a proportional relationship and if so write an equation if it does not explain why.
It is not proportional because the rate is not constant.