Inequalities
5x+7=32
x=5
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What is 32% of 560
179.2
Add 8.563 and 4.8292.
13.3922
Evaluate the following if a = -2 b = -4 c = 8
abc/2 - 4a
40
What is the volume formula for a Sphere?
V = 4/3 π r3
π = pi
4x-4=28
x=8
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What is 412% of 20
82.4
Math Riddle:
1=3
2=3
3=5
4=4
5=4
What does 6 equal?
6=3
Simplify by combining like terms:
2.8 - 4.4n - 2n + 7
9.8 - 6.4n
Find the volume of a rectangular pyramid if the height is 8 cm, the width is 6 cm, and the length is 10 cm.
V=160 cm3
Use calculator:
x- 2 1/3 = - 4 2/9
x= -1 8/9
Chad buys a Stanley on sale. If the Stanley usually costs $39.99, and it was on sale for 20% off, how much did Chad pay?
Chad pays $31.99
List the 10 digits after the decimal in pi
Example:
000.0000000000
3.1415926535
2x - 8/3 (x - 3/2)
-2/3x + 4
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The volume of a cylinder is 251.2 cubic millimeters and the height is 5 mm. What is the radius? Use 3.14 for pi and round your answer to the nearest hundredth.
r = 4 mm
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3/2 (2x + 1/3) = -1/4
x= -1/4
This question has 3 parts, use calculator:
A) Parker, Emma, and Charlotte go out to eat for breakfast. If their food and beverages cost $22.50, and there is a 9% meals tax, how much is the bill?
B) After adding a tip, the total lunch cost was $28.95. What percentage tip did they give? Round your answer to the nearest percentage.
C) If they split the total cost of lunch evenly, how much will each girl pay for breakfast?
A) $24.53
B) ?
C) $9.65
How to get a number 100 by using four sevens (7’s) and a one (1)?
Answer 1: 177 – 77 = 100 ;
Answer 2: (7+7) * (7 + (1/7)) = 100
The length of a living room is 12 feet and its width is 10 feet. The length of the room is being expanded by x feet. Write two equivalent expressions to represent the area of the living room in square feet.
10 (12+x)
120+10x
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Ollie has a cylinder shaped jar of jelly with a radius of 3 inches and a height of 8 inches. If the jar is 30% full, how many cubic inches of jelly are in the jar?
67.824 in3