Ratios & Proportional Relationships
A map scale is 1 inch = 5 miles. How many miles is 4.5 inches?
22.5 miles
Question: Evaluate: -12 + (-15) - (-5).
-22
Simplify the expression: 3(2x + 5) - 4x.
2x + 15
Find the area of a circle with a radius of 5 cm. Use pi = 3.14.
78.5 cm^2
What is the probability of rolling a 4 on a standard six-sided die?
1/6
If 4 shirts cost $60, what is the unit rate per shirt?
$15 per shirt
Compute: (-3/4) * (2/3).
-1/2 or -0.5
Solve for x: 2x + 7 = 19.
x = 6
A triangle has a base of 8 inches and a height of 5 inches. What is its area?
20 sq inches
A bag has 3 red marbles and 7 blue marbles. What is the probability of picking a red marble?
3/10 or 30%
A bicycle travels 15 miles in 2 hours. What is its speed in miles per hour?
7.5 mph
Convert the fraction 3/8 into a decimal.
0.375
Solve for y: y/3 - 4 = 2
Solve for y: y/3 - 4 = 2
Question: Find the circumference of a circle with a diameter of 10 meters. Use pi = 3.14.
31.4 meters
Find the mean of this data set: 4, 8, 5, 2, 11.
6
Solve for x in the proportion 3/5 = x/20
12
A submarine is 50 feet below sea level. It dives down another 35 feet. What is its new depth?
-85 feet (or 85 feet below sea level)
Write an expression for: "Five less than three times a number n".
3n - 5
Two angles are complementary. If one angle is 35 degrees, what is the measure of the other angle?
55 degrees
Find the median of this data set: 3, 9, 4, 7, 5.
5
A recipe needs 2 cups of sugar for 3 dozen cookies. How much sugar is needed for 9 dozen cookies?
6 cups
Evaluate: -48 / (-6).
8
Solve the inequality: 4x - 2 > 14.
x > 4
Find the volume of a rectangular prism with length 4 cm, width 3 cm, and height 5 cm.
60 cm^3
A spinner has 4 equal sections labeled A, B, C, and D. What is the probability of spinning a vowel?
1/4 or 25%