Algebra
Solve for x:
2x+5=15
x=5
What is the perimeter of a rectangle with a length of 8 cm and a width of 5 cm?
26 cm
Convert the fraction 3/4 into a percentage.
75%
If you roll a standard six-sided die, what is the probability of rolling an even number?
1/2 or 50 percent
A farmer has 17 sheep. All but 9 run away. How many sheep are left?
9
What is the slope of the line given by the equation y = -3x + 7?
m= -3
Two angles are supplementary. If one angle measures 60 degrees, what is the measure of the other?
120 degrees
A jacket costs $60 but is on sale for 20% off. How much money do you save?
12 dollars
Find the median of this data set: 3, 9, 4, 7, 5.
5 (Ordered: 3, 4, 5, 7, 9)
If a digital clock reads 3:15, what is the product of its numbers?
45 (3*15)
Simplify the expression: 3(x + 4) - 2x.
x+12
What is the area of a triangle with a base of 10 inches and a height of 6 inches?
30 square inches
3/5
What statistical term describes the number that appears most frequently in a data set?
Mode
Using only addition, how can you add eight 8s to get the number 1,000?
888 + 88 + 8 + 8 + 8 = 1,000
What are the coordinates of the y-intercept for the line y = 4x - 9?
(0,-9)
What is the term for a triangle that has three sides of entirely different lengths?
Scalene triangle
If 40% of a number is 16, what is the original number?
40
A bag has 3 red marbles and 7 blue marbles. If you pick one, what is the probability it is red?
3/10 or 30%
I am a three-digit number. My tens digit is 5 more than my ones digit. My hundreds digit is 8 less than my tens digit. What number am I?
194
Find two consecutive integers that add up to 45.
22 and 23
Find the missing hypotenuse of a right triangle if the two legs are 5 units and 12 units long.
13 units
Divide 4/5 by 2/3 and leave it as an improper fraction.
6/5
Find the mean (average) of the numbers 10, 15, 20, and 35.
20
A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?
$0.05 (5 cents)