Geometry
What is the area of a triangle with a base of 7cm and a height of 2.5cm?
8.75cm2
2x + 5 = 21
x = 8
(5x2 + -9x + 11) + (2x2 + 3x -2)
3x2 -6x + 9
What is the GCF of 40 and 72?
8
Justin got 6 problems wrong on a 25 question test. What was his score as a percent?
76%
What is the volume of a rectangular prism with a length of 8 inches, a width of 3 inches, and a height of 5 inches?
120 inches3
x/5 + 7 = -3
x = -2
(-2x2 + 3x - 7) + (5x2 - 7x + 3)
3x2 - 4x - 4
What is the LCM of 24 and 40?
120
What is 285% as a fraction? Simplify into a whole number or mixed number if possible.
2 17/20
What is the area of a circle with a radius of 8 inches?
201.1 inches2
3(x + 2) -5 = 22
x = 7
(-6x2 + 5x - 3) - (2x2 - 4x + 1)
-8x2 + 9x - 4
What is the GCF and LCM of 27 and 90?
GCF = 9
LCM = 270
What is the better deal, one fourth off or 20% off?
What is the volume of a cylinder with a radius of 3 yards and a height of 7 yards?
197.9 yards2
4(x + 6) - 11 = 25
x = 3
Combine like terms:
-6x - 4y + 2 + 3x + 12y - 6
-3x + 8y - 4
Serena wants to create snack bags for a trip she's going on. She has 26 granola bars and 52 pieces of dried fruit. If the snack bags should be identical without any food left over, what is the greatest number of snack bags Serena can make?
13
15% of the number of people who attended a concert arrived late. If 30 people arrived late, find the number of people who attended the concert.
200 people
What is the volume of a cylinder with a diameter of 10 meters and a height of 2 meters?
157.1 meters3
-3(x-6) + 4(x+1) = 7x - 10
x = 16/3 = 5 1/3
Combine like terms:
2x + 2y - 6x - 3 - 2y + 6
-4x + 3
Bus route A arrives at its stop every 15 minutes. Bus route B arrives at its stop across the street every 40 minutes. If both busses are currently arriving at their stops, how many hours will pass before both busses arrive at the same time?
120 minutes = 2 hours
A middle school is holding a dance. 75% of the 160 students attend the dance. What fraction of students attend the dance? How many students is this?