Probability
Equations
Proportions
Surprise
Circles
100
What is the probability of rolling an even number on a number cube?
½ , .5, or 50%
100
Solve for v:
4v + 11 = 71
V = 15
100
Solve for u, round to the nearest tenth place.
U = 6.5
100
Do the following tables show a proportional relationship? If so, write the equation; y= ___ times x MUST PROVIDE EVIDENCE
Table 1: No
Table 2: Yes, y = 4x
100
Find the Circumference of the following Circle.
Use 3.14 for pi
56.52 mm
200
A spinner with 8 equally sized slices has 2 yellow slices, 3 red slices, and 3 blues slices. The dial is spun and stops on a slice at random.
What is the probability that the dial stops on a yellow or red slice?
Write your answer as a fraction in simplest form.
⅝, .625, or 62.5%
200
Solve for x:
-23 = -6x + 7
X = 5
200
42.5% of what is 25.16?
59.2
200
Simplify:
(-4x - 3y + 6)(-7)
28x + 21y - 42
200
Find the Area of this circle
Use 3.14 for pi
The area of the circle would be 452.16 square mm
300
There is a stack of 8 cards, each given a different number from 1 to 8.
Suppose we select a card randomly from the stack, replace it, and then randomly select another card. What is the probability that the first card is an odd number and the second card is less than 4?
Write your answer as a fraction in simplest form.
12/64, 3/16, .1875, or 18.75%
300
V = 90
300
A. What number is 115% of 73.8
B. 12 is what percent of 80?
A. 84.87
B. 15%
300
It costs $3.24 for a pack of 18 pens. Calculate the unit price.
It costs $0.18 per pen
300
The circumference of a circular garden is 135.02 feet. What is the radius of the garden? Use 3.14 for π and do not round your answer.
The radius would be 21.5 feet
400
Kala is studying the growth of a particular type of plant. She is testing the effects of three growth factors: lighting, age, and temperature. Here are the levels she's testing for each.
She wants to find the number of ways of combining one level from each of the growth factors. How many ways are there?
There are 60 different ways
400
Solve for w:
3(2w - 9) = 15
W = 7
400
Kareem started to run on a treadmill after setting its timer for 88 minutes.
The display says that he has finished 36% of his run.
How many minutes have gone by? Round your answer to the nearest tenth.
31.7 minutes have gone by.
400
Determine if each graph is proportional or not. If it is write the equation for the graph; y = ___ times x.
MUST PROVIDE EVIDENCE!
Graph 1: Yes, y = 3/2x
Graph 2: No
Graph 3: No
400
If a circular room has a diameter of 38 feet, how many square feet of carpet would be needed to cover the floor? Round your answer to the nearest square foot.
You would need 1134 square feet of carpet would be needed.
500
A box contains 1 plain pencil and 7 pens. A second box contains 5 color pencils and 5 crayons. One item from each box is chosen at random.
What is the probability that a pen from the first box and a crayon from the second box are selected?
Write your answer as a fraction in simplest form.
7/16, .4375, 43.75%
500
Solve for y:
-5(2y + 8) = 31
Y = -7.1
(or - 7 1/10 or -71/10)
500
If Sam bought 12 inches of wire for 40 cents, how many inches of wire could Sam purchase for $1.70?
Sam could purchase 51 inches of wire.
500
Jane paid $19.99 for 7.98 kg bag of dog food. JoJo paid $20.38 for a 8.39 kg bag of the same brand of dog food.
Find the unit price for each and determine which one had the better buy.
The unit price for Jane’s dog food was $2.51 per kg. The unit price for JoJo’s dog food was $2.43 per kg.
JoJo had the better buy.
500
If a circular room has a diameter of 45 feet, and you have to pay for the carpet, which is $7.50 per square foot. How much would you have to pay to cover the room?
Round to the nearest $.
You would have to pay about $11,922 to install the carpet.