What expression best represents the difference between triple a number and double a number?
What is 3x-2x
100
A bag has 16 quarters, 33 dimes, 21 nickels. What is the probability of randomly selecting a nickel from the bag? Simplify
What is 3/10
100
Containing the radius, what is the formula for circumference?
What is 2 x pi x r
200
Circle with radius 5. What is the circumference? Use pi key.
What is 31.4
200
Suppose you have 5 white, 5 blue and 8 black socks in a drawer. What is the probability that you randomly pick a black sock from the drawer? Simplify
What is 4/9
200
Area of a circle
What is pi x r^2
300
If 12 cows produce 70 gallons of milk, how many gallons of milk would 42 cows produce?
What is 245
300
Kobe can work about 22 math problems in 30 minutes. At this rate, how many math problems can Koby work in 3 hours?
What is 132 math problems
300
Diameter of a circle is 12. What is the area? Use pi key.
What is 113.1
300
In a sample of 275 people 225 could tell the difference between two different types of cream cookies. Based on this data, what is the best estimate of how many in the population of 5,000 people could tell the difference between the cookies?
What is 4090
300
Perimeter of a rectangle
What is 2L + 2W
400
|-10|-|6|
What is 4
400
A cylinder with a height of 4 and a radius of 8 is used to create a tower. What is the volume of the cylinder? Use pi key.
What is 804.2
400
Volume of a cube
What is L x W x H
500
13-2(1-15)รท4
What is 20
500
Jason installs a light on his house to light part of his yard. The light shines in a semicircle with a radius of 20 feet. What is the area that is lit up? Use 3.14 for pi.
What is 628
500
On a spinner there are 8 even sections. They are labeled with 3 ones, 4 twos, and 1 three. You spin a one 30 times out of 120. How many more times do you need to spin to have the theoretical probability match the relative probability?