What are the three different ways you can write a proportion?
to : fraction
100
Change 72% to a decimal.
0.72 or .72
100
Jake saw a sweater that was originally $60 but was on sale for 20% off. What was the new price of the sweater?
$48
100
What percent of 45 is 21?
n * 45 = 21
46.6 % or 46.7% or 47%
100
What is the circumference of a circle with a diameter of 8in?
25.12 in.
200
Write the ratio 15 girls to 18 boys in simplified form in three different ways.
5 to 6, 5:6, 5/6
200
What is 3/5 as a decimal?
.6 or .60
200
There are currently 650 students enrolled at a local middle school. However, next fall, the population is expected to increase by 6%. How many additional students will there be?
39 students
200
What number is 17% of 35?
.17 * 35 = n
5.95 or 6
200
What is the area of a circle with a radius of 6in?
113.04 sq. in.
300
Prove whether this is a proportion or not.
12/15 = 18/24
4/5 does not equal 3/4
or 288 does not equal 270
300
What is 3/8 as a decimal?
0.375
300
Saul had 445 points out of 500 during his first semester of math class. What was his grade when expressed as a percent?
89%
300
90% of the class passed the Puzzling Proportions math test. If 27 kids passed the test, how many kids are in the class?
.90 * n = 27
30 kids in the class
300
What is the area of a circle with the diameter of 9in?
63.585 sq. in.
400
Solve the proportion
3/5 = x/13
x = 7.8
400
1 and 1/3 is what as a decimal AND percent?
1.3 repeating and 133%
400
My dog Barkly barks 17 times in 2 minutes. At this same rate, how many times will he bark in one hour?
510 times
400
A new cell phone normally cost $365. It is on sale for 60% off. What is the new price?
.60 * 356 = n
$219 is the discount so $365 - $219 = $146
400
Find the area of a trapezoid with a height of 10 ft and the bases of 14 ft and 17ft.
155 sq. in.
500
Solve the proportion
12/16 = 36/x
x=48
500
How much is 4/5 of 28?
22.4
500
My family and I went to get haircuts together. Our bill before tax was $78.95. There will be a 7% sales tax on this as well as a 20% tip on top of the bill and tax added together. How much did we spend at the salon?
(In other words, the tip is based on the price including tax.)
$101.38
500
A store is selling cd's for 30% off the regular price of $24.99. If there is an additional $5 off coupon, what is your price?
.30 * $24.99 = n
$7.50 is discount so $24.99 - $7.50 = $17.49
Then....$17.49 - $5 = $12.49
500
Find the area of a trapezoid with a height of 7in and the two bases of 13in and 15.5in.