Algebra
6x + 22 = 40
x = 18
What is the median of these numbers?
11, 13, 17, 69
27.5
If a square's sides add up to 28cm what is the area?
49cm
If a grinch plants two Eucalyptus ( tree 1 and tree 2) trees but one gets eaten by a polar bear what chance does someone have of picking the one that got eaten by picking out of a hat with 2 pieces of paper in it (tree 1, tree 2)?
1/2
a2 + b2 = x2
What does x =?
c
92 - 12y = 33
y = 4
What is the difference between mean, mode and median?
the mean is the average
the mode is the number that occurs the most
the median is the middle number
The area of a triangle is 10 cm and the base is 2cm long how long is the other side?
10cm
What is the sample space for flipping two coins?
head, head tail, tail, head, tail tail, head
If a circle's diameter is 8cm what is the area?
16 pi
8 * 4 / 4x + 17 = 21
x = 2
How many circles are used in a Venn diagram?
2
If a Grinches caves measurements are 10m * 7m * 4m but ten percent of its volume is covered by snow what is the volume of the cave?
252m3
if I roll two dice what is the chance the two dies sum adds up to 9?
4/36 or 1/9
If a grinch reads 3/8 of a 200-page book in 1hr how many pages does he read per minute
1.25
7x2 + 12 = 264
x = 6
There are 50 students in a grade. 20% of these are left-handed. 4 of the left-handed students play volleyball. What fraction of the 50 students are left-handed but don't play volleyball?
3/25
If the width of a rectangle is 4x , its length is 8x and its area is 288cm2 what does x =?
x = 3
There is a train with 100 carriages. 25 of these are zoo carriages. 40% of these zoo carriages have lions and 3/10 of the ones with lions have zebras. How many have zebras?
3
If the height of a triangle is 3cm and the base is 4cm then what is the length of the hypotenuse?
5cm
The sum of two numbers is 39
The difference between the two is 9
What are the two numbers?
24 & 15
The numbers 3, 6, 13, 17, 1, 1, 24, 6, 19, and x have a mean of 10. What is x?
x = 10
A rectangular prism and a cylinder are stuck together. The rectangles dimensions are 4*7*9, the radius of the cylinder is 3cm, and the height is 8cm, what is the volume correct to two decimal places?
478.19cm cubed
If you pick out two playing cards out of a deck of 52 at random what is the chance you get two aces?
1/221
A man buys a cockatooo for 60 dollars and then sells it for 70 dollars. He then buys it back for 80 dollars and sells it for 90 dollars. Did he make or lose money and if so how much?
The man makes 20 dollars.