Percentages
Two hundred ten percent of 50 is what number?
Write out an equation, then solve.
2.10 x 50 = n
n = 105
Three less than a number is the same as 1/4 of the number. What is the number?
n = 4
Three out of five students passed the exam with an "A". If there were 25 students in the class, how many did not receive an "A" on the exam?
10 students
Choose points and plot the following line on the gird board:
y = 1/2 x +3
(Grid board)
Find the lateral surface area of a rectangular prism that has a square as its base with a width of 2 ft. The sides of the prism are 5 ft. long.
SA = 40 ft2
We purchased a new coat on sale for $72. If the original price was $96, what percent discount was this?
25% discount
Evaluate: 2xy - 3y2 + 4x
If x = -2, y = -3
- 23
If a number is tripled and decreased by 2, the result is the product of five and four. What is the number?
n = 22/3
If we graph the line y = -3x + 4, is the line
a. Growing rapidly from left to right?
b. Growing slowly from left to right?
c. Declining slowly from left to right?
d. Declining rapidly from left to right?
d. Declining rapidly from left to right
Find the surface area of a standard basketball court that is 16 feet long and 12 feet wide with a half circle at the end.
(Round the answer to the nearest hundredth.)
SA = 238.55 ft2
What percent of 8.2 is 20.5?
Write out an equation, then solve.
p x 8.2 = 20.5
p = 250%
Solve: 2x - 3 = -11 - x
x = - 8/3
A family was intent on getting to Grandma's house and back home as soon as possible. If they were able to average 72 miles per hour, and the distance from their house to Grandma's house was 342 miles, how long did the trip take?
9.5 hours
Solve: (2x - 8)2-4 = 3
x = 28
Find the surface area of a right circular cylinder that is 3 meters across on the top and 4.5 meters high.
(Round the answer to the nearest hundredth.)
SA = 56.55 m2
We bought two pairs of jeans, three shirts, and four pairs of socks. If the jeans were $34 each, the shirts were $27 each, and the socks were $11.50 each, and our tax rate is 4.75%, what is our total purchase? (Explain the process to determine the total.)
$204.26
If we double a number and increase it by nine, the result is the opposite of triple the same number decreased by 1. What is the number?
n = -2
A salesman is paid 4% on his sales and also a salary of $575 per month. Over the course of two months, he made sales of $413,000. What did he make for those two months?
$17670
Simplify: 3-2 + 2-3
Give a fraction answer. No calculator!
17/72
Determine the lateral surface area of the figure drawn.
(Round the answer to the nearest hundredth.)
LSA = ______ ft2
We had a bill at the restaurant of $142, and we wanted to tip our waitress 15%. If tax is 5.5% and we figure tax before tip -
a. What was the bill before tip?
b. What was the total with tip?
a. $149.81
b. $172.28
Evaluate: 18 - (4 + sqrt. 4)2 / cube root of 27
-6
If a car's sale price is $41,000 that has been discounted 12%, what was the original price of the vehicle?
(Round your answer to the nearest penny.)
$46590.91
Distribute and solve: -3(7 + x) = 5(x - 3)
x = - 3/4
Determine the complete surface area of the figure drawn.
(Round the answer to the nearest hundredth.)
SA = ________ ft2