Probability Question

Problem: A spinner has 4 equal sectors colored yellow, blue, green and red. What are the chances of landing on blue after spinning the spinner? What are the chances of landing on red?

Lucy invited her friends. Kathyrn and katrina to come over at the house to play some games and eat some snacks. They used a spinner of what they wanted to eat. but Lucy doesn't have a spinner with food on it.So they used coloures instead. P(red) chips, P(orange) watermelon, P(green) salad, P(yellow) bananas, P(purple) cucumbers. What is the probability of the arrow pointing on p(red)?


My answer to Jenny's question


sorry for the picture being so small i tried getting it bigger but it wont work.

here's a video





here's a link if the video didn't help

http://www.mathsrevision.net/gcse/pages.php?page=32

I hope this was the right answer and it helps

answer to camille's question

Q: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 a yellow pencil crayon?
A:The answer would be 1\6, 1:6, 16.6%

probability question

Joe had a bowl with 5 marbles 1 is blue, purple, green, red, and orange Joe has to pick one, what is the probability of him getting red? Make a tree diagram to show







Here's a link that might help
Here' a video that might help you

Answer to Camille's Question!

Question: There's 6 pencil crayons

1 blue, 1 green, 1 yellow,

1 red, 1 orange, and 1 pink. What is

the probability of him getting a yellow

pencil crayon?

Answer: The answer is

http://http//www.shodor.org/interactivate/activities/ExpProbability/

A video to help you!

Probability Question

There are 5 marbles in a bag. 2 are yellow, 1 is green, 1 is red ,and 1 is blue. They are all put in a bag. You randomly choose one without looking. What is the probability of you getting a yellow one, a blue one, a green one or a blue one. Put it in a fraction, ratio and percent. All of them!! (=

Answer to Anita's question.

Q: It's Annie's birthday, and there are 9 people attending the party.

There are 8 balloons: a red, blue, green, purple, black, white, yellow, and brown-ish one.

What is the probability of a person not getting a balloon? Express the answer as a ratio,fraction, and percent.

A:

Probability Question

What is the probability of p( red and red ) by

picking up a pair of red socks without looking

twice while there are blue, brown, white, and

black pairs in there to?

Here's a link to help you!

http://http//www.mathgoodies.com/lessons/vol6/intro_probability.html

And a video to!

Answers for Textbook pages 1-7

1. Describe lines that intersect at 90 degrees.
- Perpendicular.

2. Describe lines in the same plane that never intersect.
- Parallel

3. A line that divides a line segment in half and is at right angles (90 degrees) to it.
- Perpendicular bisector

4. A line that divides an angle into two equal parts.
- Angle bisector.

5. A part of a line between two endpoints.
- Line segment.

6. Which of the following are parallel, and which are perpendicular?
a) parallel
b) perpendicular
c) perpendicular
d) parallel

7. Copy these line segments into your notebook. Draw two perpendicular line segments and two parallel line segments for each.

a)

b)

textbook numbers 14 and 15

This is question to number 14 in your textbook!



What is the area of each parallelogram?






a) base 5m and height 3m



area = b*h

area = 5m*3m

area = 15m squared Area is 15m squared.

This is question to number 15 in your textbook!

In the flag of Congo-Brazzaville, the length of the rectangle is 2.7 times the base of the yellow parallelogram. How do the areas of the rectangle and the parallelogram compare? Explain.

Well, the area of the rectangle is b*h and same with the parallelogram both the rectangle and the parallelograms height are the same but the only difference is that the length of their base are different which means that the rectangle is always going to be 2.7 times bigger.

Here's a link that might help you if your still struggling!!!

http://http://www.ixl.com/math/practice/grade-7-area-of-rectangles-and-parallelograms

And here's a video to, hope you like it!

3 questions

1.Annie has been asked to calculate 1.7+6/2.She claims that the answer is 3.85.Do you agree/.Explain why or why not
I don't agree because if you use BEDMAS:
1.7+6/2
1.7+3
4.7

2.put brackets in the following expression to get the largest value possible.What problem solving strategy did you use? 3x2.8+6.4 ÷ 4
You can do it 2 ways:
(3x2.8)+6.4 ÷ 4
8.4+6.4 ÷4
8.4+ 1.6=
10
or
3x2.8+(6.4 ÷ 4)
3x2.8 1.6
8.4+ 1.6=
10
Here's a video that might help you!

3.Create a problem that could be solved using th following expression:2.5+1.25+5x 1.6
Jayne is on garage sale she saw a set of 2 plate and cup for 2.5.She saw a pencil case that have 5 unused eraser on it on it that cost 1.25.Then saw a pack of pencil that cost 1.6 then she buy 5 of them.Thetotal of things she bought $11.75

B.E.D.M.A.S

B- Brackets ( )
E- Exponents
D- Division (in order from left to right)

M- Multiplication
A- Addition (In order from left to right)

S- Subtraction


You just have to remember to do it in order and then bring down the rest of the numbers.



Here is a picture to help

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.

I don't agree because Annie added 1.7 + 6 first which would make the answer 7.7. She should have divided 6 and 2 then added 1.7 to make 4.7.

Here is a link to help

http://www.learnalberta.ca/content/mejhm/index.html?ID1=AB.MATH.JR.NUMB&ID2=AB.MATH.JR.NUMB.INTE&lesson=html/object_interactives/order_of_operations/use_it.html

heres a viedo to help

hope this helps

I hope this helps

How I Solved The Following Questions!

B- brackets ( )

E- exponents

D- division

( in order from left to right )

M- multiplication

A- addition

( in order from left to right )

S- subtraction

1 example

/= to divide

*= to multiply

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.

Answer: I don't agree because 6/2 = 3, 1.7+3 = 4.7

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.

Answer: (3*2.8) + 6.4 /4= 10

3*2.8 + (6.4 /4) = 10

3* (2.8 + 6.4) /4 = 6.9

3. Create a problem that could be solved using the following expression. 2.5+1.25+5*1.6

Answer: Katty went shopping for new outfit. She saw a top that was $2.50 then she saw a scarf that she thought would look good with the top and she bought it for $1.25. Then she bought some jewelry that was 5 bucks each. Then she added all those things together which made 8.75 then she multiplied that with 1.6 because of the tax which made it $14.00 altogether.

Here's a link to help you if your still stuck:

http://http//www.studygs.net/pemdas/

And a video to just in case:

Order of Operation

This is the language of math!

Brackets
Exponents
Division
Multilplication
Addition
Subtraction

(0.75 - 0.5) x (4.2 ÷ 0.6) + 7.3 - 1.2
0.25 x (4.2 ÷ 0.6) + 7.3 - 1.2
0.25 x 7 + 7.3 - 1.2
1.75 + 7.3 - 1.2
9.05 - 1.2
7.85

try this website for more help.






watch this video for help.

Answers for 3 Questions

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.

I don't agree because first you have to divide 6 into 2 which makes 3. Then you have to add 3 to 1.7 which makes 4.7.

2. Put brackets in the following expression to get the largest value possible. What problem strategy did you use? 3 x 2.8 + 6.4 / 4

I used: (3 x 2.8) + (6.4 / 4) = 10

3. Create a problem that could be solved using the following expression:
2.5 + 1.25 + 5 x 1.6

(2.5 + 1.25) + (5 x 1.6) = 11.75

Order Of Operations

BEDMAS




B - brackets ( )

E - exponents


D - division

( in order from left to right)



M - multiplication

A - addition


( in order from left to right)


S - subtraction

Look on the right side for an example :







Just remember that you have to do them in order.
So you need to remember what each letter in BEDMAS stands for or means .

Here's a video to help you :

Order of Operations

B-brackets
E-exponents
D-division
M-multiplication *
(in order from left to right)
A-addition
S-subtraction
(in order from left to right)
here is an example:
Here's a video that might help!

Order of operations

b.e.d.m.a.s

brackets ( )

exponents

division

multiplycation

addition

subtraction

2+3x4= could be 14 or 20

2+12=

14 show your work

0-34 3x(80x5)=

0-34 3x 400

0-34 1200

1166 show your work

Math Questions 1-3

1. Annie was asked to calculate 1.7 + 6÷2. She claims the answer is 3.85.
Do you agree?
Explain why or why not.

No, I do not agree with Annie because the first thing you had to do was divide 6 by 2, so the answer is 3.

1.7 + 3 = 4.7

Annie got the answer 3.85 by adding 1.7 to 6 to get 7.7, then divided 7.7 by 2 to get the answer 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 = ?

(3 × 2.8) + (6.4 ÷ 4) = 10


3. Create a problem that could be solved using the following expression.

2.5 + 1.25 + 5 × 1.6 = 14

Emma was shopping for school supplies, and bought a calculator for $2.50. Then she bought a box of pens for $1.25, and 10 pencils for $5. Without the taxes, Emma would have to pay $8.75, but with the taxes, she would have to pay $14 for the school supplies.

Answers for 3 question's

Annie has been asked to calculate 1.7+6÷2 she claims the is 3.85. Do you agree? Why or why not.

I don't think the answer is 3.85 because if you use bedmas the answer is 4.7 my proof:
1.7+6÷2
6÷2=3
1.7+3
4.7
She used a calculator so she put 1.7+6÷2=3.85

Put brackets in the following expression to get the largest value possible .What problem solving strategy did you use?

3x2.8+6.4÷4 i think the brackets go in between go the (6.4÷4) because when you do bedmas to answer it, it makes 10

create a problem that could be solved using the following expression.

2.5 + 1.25 + 5 × 1.6

James was at a store and decided he should buy some cupcakes for $2.50. He saw some pears that he wanted to buy and it cost him $1.25. Last bought not least James bought five cases of cookies for $1.60 each. Everything he bought added up to $11.75

heres a link to try out http://www.ixl.com/math/grade/seventh/