Equations/Inequalities
5x + 7 = 27
x = 4
What is the definition of the mean of a set of data?
The average or when you add all of the numbers up and divide by the total number of numbers in the set.
What is the definition of complementary angles? and What is the definition of supplementary angles?
Complementary - angles that add up to 90 degrees
Supplementary - angles that add up to 180 degrees.
A circle has a diameter of 14 feet, what is the circumference?
43.98 feet
15 is what percent of 60?
25 %
Solve the following:
2(x + 5) > 54
When you graph it, is the circle open or closed and does it point to the left or right?
x > 22
open circle
shade to the right
Find the mean, median, mode, and range of the following set of data:
12, 8, 15, 2, 20, 25, 13, 12, 10, 12
Mean - 12.90
Median - 12
Mode - 12
Range - 23
What is the complement of an angle that is 68 degrees?
22 degrees
A circle has a radius of 6 feet, what is the circumference?
37.7ft
Savannah works as a sales rep and receives $23.80 for ever $140 she sells. What is her rate of commission?
17 %
6x - 5(x + 11) = 205
x = 260
Kylie has a coin and a number cube. She flips the coin once and rolls the number cube once. What is the probability that the coin lands tails-up and the cube lands on a 4?
1/12
Could the following side lengths form a triangle: 2 cm, 4 cm, 7 cm?
No, because 2 + 4 is not bigger than 7.
A circle has a diameter of 20 inches, what is the area?
314 inches squared
The bill at a restaurant came to $136.40. The patrons decided to leave a 15% tip. What was the total bill including tip?
$156.86
Downloading music cost $0.99 per song, plus a registration fee of $25. If you spent a total of $39.85, how many songs did you download?
x = 15
Draw a box-and-whisker plot for the following set of data:
12, 14, 15,17, 22, 25
What is the median, lower quartile, upper quartile, range, and interquartile range?
Median: 16
Lower Quartile: 14
Upper Quartile: 22
Range: 13
Interquartile Range: 8
A triangle has a right angle and a 42.7 degree angle. What is the missing angle?
47.3 degrees.
A stadium floor that is in the shape of a circle has a diameter with a length of 50 yards. What is the area of the circle on the stadium floor?
1963.5 yards squared
A sweater is marked down from $25 to $19. What is the percent of change?
24% decrease
Benny had $35 to spend at the store. He paid $10 for a DVD and then bought some packs of gum for $2 each. What is the maximum number of packs of gum he could purchase?
He can buy 12 or fewer packs.
A box of granola bars contains 3 chocolate chip bars, 2 peanut butter bars, 1 lemon bar, and 4 raisin bars. Iesha will randomly select a granola bar from the box (not replace it) and then select another bar. What is the probability that the first bar she selects will be lemon and the second will be raisin?
2/45
Two angles add up to 113 degrees. One angle is labeled as 2x and the other is labeled as 3x + 1. Find x.
x = 22.4
A circle has an area of 78.5 square inches. What is the radius of the circle?
approximately 5 inches
Beth made a $900 deposit at a simple interest rate of 4%. What was the total value after 20 years?
$1620