Mathematics Middle School

help me out with some questions!!!!

Answers

Answer 1

Answer:

ok i would help but im new so i dont know how to put it

Step-by-step explanation:

Answer 2

Answer:

1.) 25

2.) $12

3.) $20

4.) 9

5.) $15

6.) 9

Step-by-step explanation:

Related Questions

please help me with this math

Answers

Answer:

i think is correct

Step-by-step explanation:

you need connect figure.

you need to connect the figure then youll have the answer

Can someone give me a small lesson on nets and surface areas??

Thank you if you can. I really don’t understand.

Answers

Hi!

Here is the definition of a net from www.icoachmath.com:

“Net is a two-dimensional pattern of a three-dimensional figure that can be folded to form the figure. In other words, net is a flattened three-dimensional figure which can be turned into the solid by folding it.”

In the photo is an example of a net of a rectangular prism.

Surface area is the measure of the total area of the surface of a 3D object. For example, if I have a cube, the surface area would be the area of the outside of the cube.

Hope this helped,

Caroline

a net is just the sides of a 3d shape ‘unfolded’.

I need help on this also could I get an explanation on how you solved it? Please don't take my points ill get u banned. :P

Answers

Answer:

1/2

Step-by-step explanation:

4 is the total right and 5/7 make it half so it will be 1/2. hope this helps!

1/16
Hope this helps, have a good day
^^

plz help and explain

Answers

Answer:

A regular polygon

B irregular polygon

C regular polygon

D not one

E regular one

F not one

Step-by-step explanation:

Frodo ran 2 3/5 miles in 7/12 of an hour. How many miles can Frodo run in one full hour?

Answers

To find how many miles he ran, we need to convert 7/12 of an hour to a full hour. To get a full hour, we must multiply 7/12 by 12/7. Knowing this, we need to multiply 2 3/5 miles by 12/7.

2 3/5 * 12/7

This would be

156/35 miles or 4 16/35 miles

Solve the x
-9 (1/2x - 3) = 45

Answers

Answer:

−

Step-by-step explanation:

Answer:

x = -4

Step-by-step explanation:

-9 (1/2x - 3) = 45

Divide both sides by -9

1/2x - 3 = -5

Add 3 to both sides

1/2x = -2

multiply both sides by 2

x = -4

Solve the following equation when a = 3 and b = 2.
5a^2 − 10b + 9b =

Answers

The answer for this problem is 43

5(3)^2-10(2)+9(2)
15^2-20+18
225-20+18
=223

please and answer correctly, i will give brainleist

Answers

Answer 1: Meal

Answer 2: Spinning the number less than 3 and fliping tailes

Step-by-step explanation 1: Because there are way more choices to choose from so more people will go for the meal chose.

Step-by-step explanation 2: It is more likely to land on a 3 or below because of the chances and for it to land on heads is a 50-50 chance

Hope this helped!

Answer:

8 = 21 9 = 20 10 = 24 11 = 60

Step-by-step explanation:

15 = 7/10

16 = 9/10

17 = 9/10

18 = 0/10

19 = 13/10

20 = 13/10

Ophelia keeps flour in a cylindrical canister. The capacity of the full canister is 75.36 in^3..When it is filled halfway the flour reaches a height of 3 in. What is the diameter of the canister?

Answers

Answer:

4 (rounded to the nearest whole number)

Step-by-step explanation:

total height = 3 x 2 = 6

Volume = radius^2 * pi * height

75.36= radius^2 * pi * 6

75.36/pi = radius^2 * 6

23,987833 = radius^2 * 6

23,987833/6 = radius^2

3,997972 = radius^2

radius = 1,999493

diameter = radius x 2 = 1,999493 x 2 = 3,998986

Hazel has 1 3\4 cups of rice. It takes 1 \8cup of rice to make one cup of chicken and rice soup. How many cups of chicken and rice soup can Hazel make if she uses all of her rice?

Answers

Answer: 3 1/8
Explanation: you do 13/4 - 1/8= 3 1/9

I think the answer is 3 1/8 ---> emphasis on the I tHiNk :^

What is the theoretical probability of landing on NOT green?

A. P(green)= 4/5

B. P(green)= 3/4

C. P(green)= 1/5

D. P(green)= 5/8

Answers

Answer:

D. P(green)= 5/8

Step-by-step explanation:

Number of green appearances:

Total:

Appearances of not landing on green:

Theoretical probability of landing on NOT green:

5/8

the sides of a rectangle are in the ratio 2:5. if the longer side of the rectangle is 25.5 in., what are it's width, perimeter, and area ?

Answers

Answer: The width of the rectangle is 10.2 inches, the perimeter is 71.4 inches, the area is 260.1 inches.

Step-by-step explanation:

25.5/5=5.1

5.1*2=10.2

The width is 10.2 inches

25.5*2+10.2*2=71.4

The perimeter is 71.4 inches

20.5*10.2=260.1

The area is 260.1

Width=10.2 in. Perimeter=71.4 in. Area=and 260.1 in.

Step-by-step explanation:

hope it helps

Can someone help me please

Answers

Answer:

R= C x 2 - 5

C= R/2

Step-by-step explanation:

the answer is r - 5 > 72

Match the verbal statement to the correct value.

One–third of the product of −8 and 9
Half the sum of 8 and −6
Three times the sum of 12 and −6
One-fifth the product of 1 and −5
Five times the sum of −8 and 4

Answers:

-24
-20
-1
1
18

Answers

Answer:

down below.

Step-by-step explanation:

One–third of the product of −8 and 9 = -24

-8(9) = -72

-72 / 3 OR -72(1/3) = -24

Half the sum of 8 and −6 = 1

8 + (-6) =2

2 / 2 = 1

Three times the sum of 12 and −6 = 18

12 + (-6) = 6

6 * 3 = 18

One-fifth the product of 1 and −5 = -1

1(-5) = -5

-5/5 = -1

Five times the sum of −8 and 4 = -20

-8 + 4 = -4

-4 * 5 = -20

1. -24
2. 1
3. 18
4. -1
5. -20

You toss one coin and roll one number cube. What is the probability the coin is heads and a 3 is rolled?

Answers

Answer:

1/6 for the cube and 1/2 for the coin

it would be 4/6 or 2/3 both are the same

Step-by-step explanation: sorry if im wrong btw

Answer:

Hello! answer: 1/12

Step-by-step explanation:

Heres a picture explaining the answer!

What is the median of these numbers :
65,56,76,65,52,89,41

Answers

Answer:

Step-by-step explanation:

You find the one equally in the center of the numbers after they are in order.

65 is the answer of the median n don’t know what else to right cause I need answers too

In what periods are the lanthanides and actinides? Where are they
placed in the periodic table? Why?

Answers

Lanthanides are in period 6 and actinides are in period 7. They are at the down part of the page so that the periodic table can fit on the page.

Answer: They are palced in 6th and 7th period below the periodic table due to their properties and to keep the balanced shape of periodic table.

help?????............

Answers

I’m not really for sure...but
I’d say it’s
x is negative and y is negative

Hope I’m Correct Sorry If I’m Not :)

Answer:

Im pretty sure its the first one

Step-by-step explanation:

i’ll mark as brainliest if correct

Answers

point b has a negative x

Write an equation that you can use to solve for the height of the triangle (x). Notice that the perimeter is 48 feet.

A. 48 = 12 + 20 + x
B. 48 = 12(x)/2
C. 48 = 12(x) (20)
D. 48 = 12 + 20 - x

Answers

The answer is A.48=12+20+x

A IS answer 48 = 12 + 20 + x

i need help with this pls

Answers

Answer:

nah

Step-by-step explanation:

1/5x means x can be any varible plus 2, and 1/5 (x +2) means that you multiply 1/5 by x then add 2.

Answer:

Step-by-step explanation:

because [tex]\frac{1}{5\\\\}[/tex]x +2 is not the same as [tex]\frac{1}{5\\}[/tex](x+2)

What is the scale factor of the dilation?

Is the dilation an enlargement or a reduction?

Answers

Answers:

Scale Factor = 3/4

This is a reduction

======================================================

Explanation:

Let's focus on the point R(4,4). That's the preimage point for the image of R ' (3,3).

Let k be the scale factor. We multiply this value of k by the x,y coordinates of point R to jump to R '

we have x = 4 jump to 4k which is the x coordinate of point R'

So we set 4k equal to 3 and solve for k to get k = 3/4. The scale factor is 3/4 or 0.75

We have a reduction since the image triangle T'R'S' is smaller compared to the preimage triangle TRS. We can see that we have a reduction by looking at the scale factor. If 0 < k < 1, then we have a reduction. If k > 1, then we have an enlargement instead. So we go with the first option since 0 < 3/4 < 1 or you could say 0 < 0.75 < 1.

Answer:

A reduction (think shrinking) is a dilation that creates a smaller image, and an enlargement is a dilation that creates a larger image

Step-by-step explanation:

Please if you do both I will give brainiest (to the first one to answer)

Answers

Answer:

Answer to first:

Yes, x is a rational number.Yes, y is a rational number.Y is larger

Answer to second:

I know that -3.4 is a rational number because it is an integer or decimal not equal to zero.

Step-by-step explanation:

Explanations to first:

0.147 is rational because you can write it out.0.147 bar is rational because it can be written as a fraction.Y is larger because the numbers keep repeating, so it has a larger value than 0.147.

can someone pls help

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Because they equal the same thing

Find the area of the circle. Round your answer to the nearest hundredth. 15 in.

Answers

well nearest hundredth is 3

The answer is 94.2
If you multiply 3.14 by 15 then multiply that result by 2, you get 94.2.
I hope this helps

What is the mean of these numbers :
101,102,100,101,99

Answers

Answer:

100.6

Step-by-step explanation:

Answer: adding by 1 then subtract by 1 then add 1 then subtract 2

Step-by-step explanation:

in a coordinate plane what is the difference between (-3 1/2, 4) and (2 1/2)?

Answers

Answer:

Step-by-step explanation:

By difference I think you mean how far away from? I don't really know what you mean by this but I will try to help.

1/2-4=-3 1/2

2-(-3 1/2)=5 1/2

-3 1/2

5 1/2

Above is a fraction.

I hope that I helped. Sorry if it wasn't the answer you were looking for.

A rectangular pyramid was sliced perpendicular to its base and through its vertex. What is the shape of the cross section shown in the figure?

A rectangular pyramid. The cross section is a triangle.

a triangle that has the same dimensions as one of the sides of the pyramid
a triangle that does not have the same dimensions as one of the sides of the pyramid
a parallelogram that is not a rectangle
a rectangle

Answers

Option C:

A triangle that does not have the same dimension as one of the sides of pyramid.

Because....

There is a rectangular Pyramid, which is sliced perpendicular to its base and through its vertex.

Option C is the answer

The perimeter of an equilateral triangle is 63 inches. If the length of each side is (4x-3), find the value of x.

Hint: Triangles have 3 sides.

Answers

Equilateral triangle have the same side lengths. Perimeter = sum of all sides
(4x - 3) + (4x - 3) + (4x - 3) = 63
Remove parentheses
4x - 3 + 4x - 3 + 4x - 3 = 63
Combine like terms
12x - 9 = 63
12x = 72, x = 6

Solution: x = 6

Given the area model of the right triangle below, what is the missing area?

Answers

Answer:

Use the pythagorean theorem

Step-by-step explanation:

25 use the equation a=sqrt of c^2 - b^2 so you would have 169-144 sqrt that and then multiple 5 x 5 to get the area of the square.

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