From the following 2 points on a graph what is the constant of proportionality? (1, 3) and (2,6)
3
Amber work at an ice cream shop. Her wages and hours are shown below in the chart. What is the constant of proportionality?
Hours (x) Wages (y)
2 16
4 32
6 48
8
k = _____
y/x
Ivan drew a scale drawing of his backyard at a scale of 1in : 3ft. If Ivan's deck is 48 feet wide in real life, what is the width of the deck in the drawing?
16 in
Jack counts 4 red cars for every 20 blue cars. What is the ratio of red to blue cars? Write as a fraction in simplest form.
1/5
What is the constant of proportionality for the graph with the following points? (4,2) (6,3) (8, 4)
1/2
What is the constant of proportionality shown in the table?
(x) (y)
4 2
8 4
6 3
0.5 or 1/2
What is the constant of proportionality for the equation y = 0.5x
0.5
Two legs of Triangle A are 3 & 4
Two legs of Triangle B are 9 & 12
The answer is the Scale Factor from Triangle A to Triangle B
What is 3
Noah cooks 5 hamburgers for every 3 hotdogs. What is the ratio of hamburgers to total food cooked? Write as a fraction in simplest form.
5/8
What is the following point on the graph called? (0,0)
Origin
What is the constant of proportionality shown in the table?
(x) (y)
5 4
6 4.8
8 6.4
0.8 or 4/5
Rachel walks dogs on the weekends. If the equation y = 9x represents the amount of money, y, she earns from walking x number of dogs. How much money does she make after walking 5 dogs?
$45
Duncan measured a game room and made a scale drawing. The scale of the drawing was 8 inches : 3 feet. If the actual length of the pool table is 6 feet, how long is the pool table in the drawing?
16 inches
Are the following ratios proportional?
1/6, 4/28
no
What are the two characteristics of a line on a graph that show the line is proportional?
1)Go through the origin
2) Be a straight line
Find the constant of proportionality
20
Write an equation to represent this situation if the cost is proportional to the number of pounds of ham.
y = 4x
In Science class you draw a cell to the scale of
48 mm = .04mm
Find the scale factor.
What is 1,200
Workdays to leisure days come in a ratio of 5 to 2 If a man take 14 leisure days, How many work days did he have to work?
35
What is the constant of proportionality?
3
Jean has $280 in her savings account. Starting next week, she will deposit $30 in her account every week. Is the amount of money in her account proportional to the number of weeks?
No
The total cost of cherries, y, is proportional to the number of pounds of cherries,x. The equation that represents this scenario is. y = 3x
If the total cost of cherries is $24, how many pounds of cherries did they buy?
8 pounds
Clayton drew a scale drawing of a neighborhood park at a scale of 5 centimeters : 9 meters. In the drawing, the volleyball court is 10 centimeters long. What is the length of the actual volleyball court?
18 meters
The ratio of people to square miles in Alaska is 5 to 1. How many people would live on 250 square miles?
1250 people