Proportional Reasoning
A supply bin contains a total of 15 markers and crayons. The ratio of markers to colors is 2:1. How many markers and crayons are in the supply bin?
10 markers and 5 crayons
What is the probability of rolling a 3?
1/6
5x + 6 = 1
x = -1
A round tabletop has a radius of 3 feet. Which measurement is closest to the distance around the tabletop?
C = 18.84 ft
What does "B" stand for?
area of the base
The length of a table is 72 inches. If 1 inch is approximately equal to 2.54 centimeters, which measurement is closest to the length of the table in centimeters?
182.88 cm
What is the probability of rolling an odd number?
1/2 or 3/6
12x - 20 = 16
x = 3
The base of a pyramid is a square with sides of length 6 centimeters. The height of the pyramid is 8 centimeters.
What is the volume of the square pyramid in cubic centimeters?
V = 96 cubic centimeters
What do you do to find percent?
Make a percent chart
Darien biked 27 miles in 3 hours. At this rate, how many miles, m, will he bike in half an hour?
4.5 miles
What is the probability of rolling an even prime number?
1/6
What is the solution set for the inequality below?
4x - 12 > 8
x > 5
The ratio 1:30 represents the scale for a model airplane. The wingspan of the model is 12.4 inches.
What is the wingspan of the actual airplane in inches?
372 inches
What is a complementary angle?
Angles that add up to 90 degrees
A coach bought 3 whistles for $4.50 each and x practice cones for $2.25 each. Write an equation that can be used to find y, the total amount of money in dollars the coach spent?
y= 2.25x + 13.50
or
y = 2.25x + 4.50(3)
Raffle tickets are numbered from 1-40. A ticket is picked at random. What is the probability of picking a number less than 20?
19/40
-4x + 12 > 48
x < -9
Two complementary angles have measures of (y+15)° and (2y)°.
Complete the equation that represents this situation. Then solve the equation for y.
(y + 15) + (2y) =
(y + 15) + (2y) = 90
y = 25
What is the formula for volume of a pyramid?
V = 1/3Bh