Q)Bob has a spinner with four colours: blue, orange, green, and red. He also has a die with 6 sides with the number 1,2,3,4,5,6. He needs to get P(blue,4) to win a bet with his friend jimmie. What is the sample space?
Use a table or a tree diagram to answer these two questions.
There's 6 pencil crayons in a box. It has 1 blue, 1 green, 1 yellow, 1 red, 1 orange, and 1 pink. what is the probability of him getting ayellow pencil crayon?
Question: There are six pencil crayons in a box.It has 1 blue, 1 green, 1 yellow, 1 red, 1 orange, 1 pink. What is the probability of him getting a yellow pencil crayon?
Jayvee is having trouble deciding what her favorite sport is she rolls normal die with a spinner that's says basketball, soccer, tennis, volleyball, badminton, and track.
show all the possible outcomes on either a chart or a tree diagram.
I'm having a bake sale and I baked 40 cookies but only 26 where sold.Now how do I show this as a fraction , decimal and percent?
This is how you make it afraction:
You can see that you can split 40 and 26 into 2 or divide it by 2 . So you take 40 and 26 and dived it by 2, you do these to both of numbers because what ever you do one number you have to do it with the other number. So if you divide 40 by 2 you get 20 and if you divide 26 by 2 you'll get 13 . So thats your answer 13 over 20 .
This is how you make it adecimal:
This is how you turn13 over 20 in to a decimal number. You have to divide 13 and 20 by 20.You divide it by 20 because the denominator which is 13 always has to equal a decimal number . So if you divide 20 by 20 you get 1 and if you divide 13 into 20 you get 0.65 so thats your answer 0.65 .
This is how you make it into a percent:
This is how you turn it into a percent.You take 13 over 20 and you divide it by 5. You have to divide it by 5 because the bottom number which is 20 has to equal the number 100 because percent means it's out of 100 .So if you divide 20 times 5 you get 100 and if you divide 13 by 5 you get 65 and thats your answer 65 percent.
You find the area of a triangle by base times height divided by two.
b * h / 2
The proper way you write it is:
A = b * h
2
A triangle is always 1/2of a parallelogram. So the triangle's area is the half of a rectangle's area.
Here is a 3 x 3 grid with a triangle.
First, you figure out what the height is. (THE BASE IS NOT ALWAYS THE BOTTOM!)
You have to find out where is it perpendicular. ( REMEMBER, THE HEIGHT IS ALWAYS PERPENDICULAR TO THE BASE.)Then, measure the height which is 3 cm.. Measure the base which is 3 cm.. Multiply the base and the height which is 9 then divide it by 2. You got the area which is 4.5 cm square.
A= b *h
2
A= 3 *3 / 2
A= 9 / 2
A= 4.5 cm. square
These are ways to know if the triangle belongs to a square-rectangle, rectangle, and parallelograms.
Square/rectangle - One 90 degree angle.Two 45 degree angles.
Parallelograms- No 90 degree or 45 degree angles
THESE ARE THE TRIANGLES!! NOT THE 4 SIDED FIGURES!!
Do you see this colored word? Press it. I LOVE BASEBALL!! ( THIS IS A LINK!!)
This guy is awesome at explaining the area. I watched it and I hope you will too. :)
If I'm forgetting something please leave a comment. Put an honest comment. OK! I'll appreciate it.
10) A parallelogram-shaped stripe is going to be painted on the wall of a daycare center. There is enough paint to make a stripe with an area of 9m². How high can the stripe be?
The answer is 6m²
All you have to do is divide 9 by 1.5
9 ÷ 1.5 = 6
11a) With a ruler, measure the base and height of the parallelogram. Explain how you measured.
The parallelogram looks something like this:
First, measure any of the 4 sides and remember that it is your base (b). Then, measure the line perpendicular to it, and that is your height (h). In this case, the base is the vertical left side, and the height is the top horizontal side.
11b) What is the area?
b = 2cm h=1.5cm
2cm × 1.5cm = 3cm²
11c) Use a different side of the parallelogram as the base. Determine the new height and calculate the area.
Use the vertical right side as your base, and use the bottom horizontal side as your height.
b= 2cm h= 1.5cm
2cm × 1.5cm = 3cm²
How does this compare to your answer b)?
They are both the same answers, because the sides of 11b) are equal to the sides of 11c), making the opposing sides parallel (bottom and tophorizontal lines parallel, left andright vertical lines parallel).
12) Which of the 2 shapes shown below has a greater area? Explain your answer.
The picture looks like this:
Both of these shapes have an equal area, because their length and base are the same distance apart, and they are both perpendicular.
Here is also a link to help you with the Area of a Parallelogram
1. Annie has been asked to calculate 1.7 + 6 ÷ 2 .She claims the answer is 3.85.Do you agree? explain why or why not?
No the answer is 4.7 because :
1.7 + 6÷ 2 =
6÷ 2 = 3
3 + 1.7 = 4.7
She got 3.85 because she didn't use BEDMAS.She did it this way:
1.7 + 6 = 7.7
7.7 ÷2 = 3.85
2.Put brackets in the following expression to get the largest value possible .What problem solving strategy did you use?
3 × 2.8 + 6.4 ÷ 4 =
Well I would put the brackets between 3 × 2.8. I put brackets on all the possible pairs (3 × 2.8, 2.8 + 6.4, and 6.4 ÷ 4) and use BEDMAS to figure out the answer ,and when you put the brackets between 3× 2.8 you will get the largest answer.
3.Create a problem that could be solved using the following expression.
2.5 + 1.25 + 5 ×1.6
Emily held a baked sale at her school, her principal bought one of her cookie for $ 2.50.Her math teacher bought one brownie for $1.25 and 5 of her friends came to the bake sale and all 5 of them bought a cupcake for $1.60. At the end of the day Emily had raised $11.75.
So to start off this scribe post is i am going to tell you the question which is :
Use the coodinate grid shown to do the following:
A) Rotate squareABC 90' in a counterclockwise direction about the centre of rotation C.
B) Translate squareA'B'C' 3 units right and 3 units down.
C) What are the coodinates of B'' ?
What they are saying is that after you had translated it 3units right and 3 units down , you made you new A''B''C''. Now C) is pretty easy you just look and lable the coodinates !
Here is a picture to show you what i am talking about :
The question i got wrong was 5 The question says: A coordinate grid has the following set of ordered pairs:(-2,-5), (0,-4), (3,0), (4,1) , (5, 2), (6, 3). The point (o,-4) is out of place.
The answer I put down was False : I got the answer wrong because i didn't look at the coordinate grid with the ordered pairs carefully.
My correction for that problem : I wrote the ordered pairs again on a coordinate grid and I checked really carefully. (0,-4 ) is the one that is out of place. so the answer is true instead of false, to show how it is true look at the photo on the left .
8. In which quadrant is the point with coordinates (3,8)? Answer: A (Quadrant I) If can't tell the quadrants apart, like me, the bottom left quadrant is quadrant III The top left quadrant is quadrant II The bottom right quadrant is quadrantIV And the top right quadrant is quadrant I
Remember that the x-axis always comes first, so you move the point 3 units across the x-axis, and 8 units up.
Sorry I couldn't put up any videos or pictures, but I hope I help you as much as I could!
So the start off this scribe post i am going to tell you the question first , which is : Use the coordinate grid shown to do to following : A) Rotate squareABC 90' in a counterclockwise direction about centre of rotation C. B) Translate squareA'B'C' 3 units right and 3 units down. C) What are the coordinates of B'' ?
What they are saying is after you rotated 90' counterclockwise the coordinates have to be at:
A') ( -5,0)
B') (-2,3)
C') ( -2,0)
and have moved it 3 units right and 3 units down ,you can see A'' , B'' , C'' and they are saying what are the coordinates of B''. You should get the answer really easy on C .
Here is a picture to show you what i am talking about :
And here is a link were you can also learn or help you understand about coodinate grids :
