Unit Rates
Solving Proportions
Proportional Word Problems
Proportional Tables
Proportional Graphs
100
A car travels 60 miles in 3 hours. Find the car's speed in miles per hour.
20 miles per hour
100
Solve for x:
3/8 = x/16
x=6
100
You can complete 20 math problems in 15 minutes. How many math problems could you do in 30 minutes?
40 math problems
100
Is the table below proportional? If yes, what is the Constant of Proportionality (k)? If no, why not?
Yes; k = 6
100
What are the two things needed for a graph to be proportional?
1. Straight Line
2. Passes through the origin (0,0)
200
A flower grows 42 cm in 5 months. How much does the flower grow per month?
8.4 cm per month
200
Solve for x:
7/11=21/x
x=33
200
A car travels 240 miles in 4 hours. At this rate, how far could the car travel in 6 hours?
360 miles
200
Is the table below proportional? If yes, what is the Constant of Proportionality (k)? If no, why not?
No
(14 div 12 ne 1.5)
200
Is this graph proportional? If yes, what is the Constant of Proportionality (k)?
Yes; k = 2
300
You buy 12 donuts for $13.26. What is the cost per donut?
$1.11 per donut
300
Solve for x:
5/x = 60/24
x=2
300
It takes 5 cups of sugar to make a batch of 24 cookies. How many cookies can I make with 8 cups of sugar?
38.4 cookies
300
The table below is proportional. Find the Constant of Proportionality (k) and use it to write an equation in the form y=kx 
k=3
y=3x
300
Is this graph proportional? If yes, what is the Constant of Proportionality (k)?
Yes; k = 5
400
I can jog ¾ of a mile in ⅓ of an hour. What is my speed in miles per hour? (Write your answer as a mixed number)
2¼ miles per hour
400
Solve for x:
x/20=2/8
x=5
400
To make a sweater, I need 15 spools of yarn. The fabric store is having a sale: 4 spools of yarn for $12.60. How much would it cost to make my sweater?
$47.25
400
Is the table below proportional? If yes, what is the Constant of Proportionality (k)? If no, why not?
Yes; k = 2.5
400
Use the proportional graph below to find the Constant of Proportionality (k) and write an equation in the form y=kx
k=2
y=2x
500
Car A travels 424 miles in 8 hours.
Car B travels 392 miles in 7 hours.
Find each car's speed (in miles per hour) and find how much faster Car B is traveling compared to Car A.
Car A: 53 mph
Car B: 56 mph
Car B is traveling 3 miles per hour faster than Car A.
500
Solve for x:
14/21 = 7/x
x=10.5
500
It costs $178.26 to cater lunch for 20 people. How much would it cost to cater lunch for 50 people?
$445.65
500
The table below is proportional. Find the Constant of Proportionality (k) and use it to write an equation in the form y=kx
k=35.5
y=35.5x
500
Use the proportional graph below to find the Constant of Proportionality (k) and write an equation in the form y=kx
k = 1/6 or 0.1bar6
y=1/6x or y=0.1bar6x