Topic 1
2
The equation y = 5.5x represents a proportional relationship. What is the constant of proportionality?
5.5
20% of 60
12
38% of 150
57
How old will Mr. Weeks be this calendar year?
24
2.3 + 5.6
7.9
In 3 days, a typical robin can eat up to 42.6 feet of earthworms. Write a rate to relate the number of feet of earthworms to the number of days. Then find the unit rate.
42.6/3= 14.2/1
Unit Rate = 14.2
5 is what percent of 50?
10%
Write a Proportional Equation to find 43% of 87
43/100 = x/87
If Man United currently have 55 points, and get 3 points for every win, with 7 games left in the season, how many total point can they get?
76
4.5 - 6.2
-1.7
Does the table show a proportional relationship between x and y? Explain.
x | 200 | 400 | 500
y | 600 | 1200 | 1,500
Yes all three have a relation of 3 to 1
Write a proportional equal to find 65% of 90.
65/100 = x/90
16 is 42% of what number?
38.095
Find x
12/60 = x/5
x = 1
3.8 x 7.4
28.12
If k = 6 set up a proportional equation that can be graphed.
y = 6x
A towns population increased from 376 to 421. What is the percent increase?
12%
OG Quantity: 100 New Quantity: 106
What is the percent increase?
6%
Solve how much time is left in the day.
Current time is:_________
Answers will vary
11.52 / 3.2
3.6
At the nearest wholesale store, 3 bags of cereal cost $21.75. At how much would 5 bags of cereal cost?
$36.25
If a chair is marked up 40% of $50, what is the new price?
$70
If a car is marked down 20% of $32,560, what is the new price?
$26,048
Simple Interest: Miles deposited $6,000 into a savings account 4 years ago, with a rate of 3%. How much has he earned in interest?
$720