Mathematics Middle School

Mrs. Chevalier’s class is reviewing by playing a math game. Mrs. Chevalier randomly selects an integer from the set of integers -15 to 15.

Part A

What is the probability that Mrs. Chevalier names a positive integer?

Part B

Explain how you determined your answer.

Answers

Answer 1

Answer:

(15/31) ?

Step-by-step explanation:

|-15| = 15

15+15+1 (for 0) = 31

1 through 15 are positive, so 15 of the 31 could be positive, or 15/31

Sorry, could be wrong, but I think it's right

Answer 2
Part A Answer: The probability that Mrs. Chevalier names a positive integer is a 50% chance.

Part B: Numbers from -15 to 15 is thirty-one total numbers including zero, but zero is neither negative nor positive, so it doesn’t really count in this situation unless the instructions describe it as positive. Without the zero, it is thirty numbers in total, with half of them being negative, and half of them being positive, which can also be said as 50%. You can find this answer by dividing 15 by 30, which is 1/2, or 50%.

Related Questions

What is the area of a triangle having a base of 4 inches and a height of 8 inches?
a.16 square inches

b.12 square inches

c.32 square inches

d.6 square inches

Answers

Answer:

a. 16 square inches

Step-by-step explanation:

It is c.32 because it would be base times height

Read another paragraph and graphic from the text “Overfishing the Oceans.” Then answer the question.
Overfishing is a problem that affects a whole ecosystem. A healthy ocean has a balance of different species. One problem with overfishing is that it takes away many of the top predator fish and disrupts this balance. Overfishing can also disrupt the marine ecosystem in other ways.

Based on the information in the paragraph and graphic, what might be a result of a decrease in tuna populations?
A. Sharks may have difficulty finding food.
B. A rise in squid and mackerel populations.
C. The balance in the food web would be disrupted.
D. All of the above are potential results of a decrease in tuna populations.

Answers

D- all of the above because sharks eat tuna, tuna eats mackerel and squid meaning if there’s nothing to eat them the population will just grow. And ofc the balance of the food web will be wack so all of the above

Answer:

D

Step-by-step explanation:

Luke and Pedro work for Crown Carpentry. On Thursday, they each hung the same amount of wooden trim, but Pedro finished first. On Friday, they will work for the same amount of time hanging trim in a new movie theater. Will Pedro likely hang more trim or less trim than Luke?

please help

Answers

I think he’ll hang more because on Thursday, they both hung the same amount but Pedro finished first meaning he can hang trim faster than Luke. So if they both worked for the same amounth of time, for example if Luke worked for as much time as it took Pedro to hang trim on Thurday, Luke wouldn’t have been finished. I hope that makes sense!

Please help me.
I need help with this question.

Answers

Answer:

$367.38 is the cost to stain the entire deck.

Step-by-step explanation:

Here is what you need to know beforehand:

Diameter is a line that goes through a circle. Radius is a line that goes from the edge of the circle all the way to the center/a line that goes halfway through the circle.

--------------------------------------------------------------------------------------------------------------

First, find the area of the circle. Here is the formula:

Area = 3.14 (Pi) x r²

Since radius is half of the diameter (as explained above), you'll need to divide the diameter in half: 12m/2 = 6m

So the formula will look like this:

Area = 3.14 x 6²

Then, you just do the math:

Area = 3.14 x 6²

Area = 3.14 x 36

Area = 113.04

The goal of the problem is to find the amount of money Emma needs. Finally, all you need to do is multiply the amount it cost to stain per square meter by the total area of the deck:

Answer = 113.04 x 3.25

Answer = 367.38

$367.38 is the cost to stain the entire deck.

giving brainliest and thanks please help !!!!

Answers

Answer:

2 and 4

Step-by-step explanation:

3 and 1 are parallel,parallel are 2 straight lines. so perpendicular means they cross. hope it helps hun!

Answer:

side 2 and side 3

side 2 and side 1

Step-by-step explanation:

A rectangle has an area of 24 square units and a side length of 2 3/4 units. Find the other side length of the rectangle. (Answer needs to be a mixed number)

Answers

The answer is 8 8/11

can some help I will give brainliest do in 5 mins

Answers

Answer:

i believe its a

Step-by-step explanation:

im sorry if im wrong

it’s B the other person is wrong

Hannah has 19 more bouncy balls than Stefan. Stefan has b bouncy balls. Write an expression that shows how many bouncy balls Hannah has.

Answers

Answer:19+ b

Step-by-step explanation:

Answer:

B + 19

Step-by-step explanation:

B is an unknown number. *

-

Example.

If Stefan has 1 bouncy ball, Hannah would have 20.

Formula.

Stephan's Amount + 19 = Hannah's Amount

Solving Your Problem.

We will do the same thing except replacing "1" with "b".

b = Stefan's Amount

b + 19 = Hannah's Amount

We are just adding 19 to his.

-

Note: In Algebra, we use lowercase variables usually...just a side note.

-

I hope I helped you solving this problem, and sorry if I have bad english. I am learning every day thank you! :)

Answer to 10? pls tell

Answers

its 60 because l*w*h so 4*5*3=60

Answer:

2. A

3. 2

4.

5. 3x^2 = 4x

6. x = 6

7. 314.2

8.

9. 2580

Step-by-step explanation:

Here is this for now sorry

My g I need help with this one question on my Test review and spammers keep answering my questions pls someone help

Answers

Answer:

2nd or 3rd one

Step-by-step explanation:

I say that because the equation is over -3 for both.

Hope this helps you! :)

it’s the 3 rd one my guy

What is the probability of rolling a 3 on a number cube and choosing a letter that is a vowel form the word MATHEMATICS?

Answers

Answer:

2/33

Step-by-step explanation:

1.Since a number cube has six sides, and the word mathematics has 11 letters, and there are four vowels in mathematics, the probability of rolling a 3 in a number cube is 1/6. The probability of choosing a letter that is a vowel in mathematics is 4/11.

2. You multiply them together. 1/6*4/11=2/33.

3. The answer is 2/33.

Liz is going to roll a die 2400 times. Which statement best represents the probability for the number of times the die will land on 5?

Answers

Answer:

400/2400

Step-by-step explanation:

im not sure

Answer:


400/2400


Hope this helps

Which three sports make up approximately half of the circle graph?
A. baseball, basketball, and tennis
B. baseball, football, and track
C. baseball, football, and tennis
D. baseball, tennis, and track

Answers

i think it’s D because it all make up half
I think it is A. Those three make up about 58% of the graph

8a < -56
what is the inequality

Answers

Answer:

a < - 7

Step-by-step explanation:

Answer:

a < - 7 here you go

Step-by-step explanation:

Last year, A professional basketball team won 60 games. This year the team won 9 fewer games than it won last year. What is the percent decrease in the number of games the team won?

Answers

Answer: it be 10%

Step-by-step explanation:

sorry if i wrong

Answer: 15%

Step-by-step explanation: Take 9 and divide that by 60.

1
A serving size of Oreo cookies is 3 cookies, which is 20% of a box of cookies. How many cookies come in a box?

Answers

Answer:

15 cookies come in the box.

Step-by-step explanation:

20% = 1/5

3 x 5 = 15

Answer:

15

Step-by-step explanation:

3 = 1/5

3 * 5 = 15

HELP!!! ITS TIMED!!!! Please explain the answer!!

Answers

(X+2)(y+3) I don’t know how to explain my Brian just knows that! Lol

PLS PLS HELP I WILL MARK BRAINLIEST!

Answers

Answer:

Step-by-step explanation:

The answer is true

True

Because Any Integer can be a Rational Number

please answer correctly! :)

Answers

Answer:

The relationship is proportional because it passes through the origin.

Plzzzz help meeeeeeeeeeeeeeee

Answers

the answer should be 112
68 +x=180
X=112
.......

can someone please answer this and also PROVIDE AN EXPLANATION

Answers

We need to find the triangular pyramid formula which is 1/3*B*H
The base is always the bottom or foundation. To find this we need the area of the triangle at the bottom.
It is 8*6/2 or base times height divided by 2
We would get 24
This is our B value. Now height is 4 in they give us this.
Plug it in 24*4/3
We get 32 inches

Answer:ccccccccccccccccccccccccccccccc

Step-by-step explanation:

Question 12
Please help me

Answers

Answer:

D

Step-by-step explanation:

So to solve for AC you'll want to find the hypotenuse for ACD. In order to do that, we need the length of AD. We can find it by using the pythagoram theorum. So 7²=A² + 5²=> 49=A²+25 so A =[tex]\sqrt{24}[/tex]

Now that we have AD we can find x which is A²=24+9=A=[tex]\sqrt{33}[/tex][tex]\sqrt{33} x^{2}[/tex]

Answer :

D

Step by step explanation:

Find the Best Price Portfolio item. Graphing in the Coordinate Plane. 7th grade. Can someone please help.

Answers

Answer:

look in the previous lesson or assignment and do a screen shot of the problem. you gave us instructions on how to do the problem but didn't show us the problem itself.

Step-by-step explanation:

i hope this made more sense to you :)

Giving Brainliest No Links
How much liquid is in the measuring cup?

A) 7 fl. oz
B) 7 1/4 fl. oz
C) 7 1/2 fl. oz
D) 8 fl. oz

Answers

Answer:

C 7 1/2 fl.oz

Step-by-step explanation:

Answer is C. 7 1/2 fl. Oz

PLS PLS HELP I WILL MARK BRAINLIEST!

Answers

Answer:

8) C -3+2.

9) D 3-(-2).

Jason enjoys walking around the block with his dog, Ringo. When Jason and Ringo walk w times around the block, they walk 0.75w miles. Last week, Jason and Ringo walked 12 times around the block.
How many miles did Jason and Ringo walk around the block last week?
Write your answer as a whole number or decimal.

Answers

Answer: It's 9!

Step-by-step explanation: Given W=12,

0.75 times 12= 9!

Hi how are you today I’m dooing well, the answer is 9

I’ll give brainliest if you help me

Answers

Answer:

B

Step-by-step explanation:

Answer:

b i copy cause i dont know

Step-by-step explanation:

Write the formula for the parabola that has x- intercepts (1.3,0) and (-1.3,0), and y- intercept (0,169).

Answers

Answer: (8, 45)?

Step-by-step explanation:

Can someone please help me. Will mark brainlist!

Answers

Answer:

You just divide 6 by 3 which makes it 50% chance.

Step-by-step explanation:

Which means the answer is 3/6

A quadrilateral has one right angle. The second angle is 95 ^{\circ}
∘
. The third angle is 105 ^{\circ}
∘
.

​What is the measure of the fourth angle?

Answers

Answer : 70°

Explanation :

Quadrilaterals have a total measure of 360°, so by adding the angles you already know - 90 + 95 + 105 - and subtracting that from 360, you get an answer of 70
70 is answer the answer sorry is wrong
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