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3 years ago

Perform the indicated operation.

Mathematics

2 answers:

LenKa [72]3 years ago

8 0

This should be your answer i hope this helps

makkiz [27]3 years ago

4 0

Answer:

X²/Z²

Step-by-step explanation:

((Xy+xz)/(xz-z²) )*((xy-yz)/(xz+yz))/((y²+yz)/(x²+xy))

= ((Xy+xz)/(xz-z²) )*(y/z(x-z)/(x+y) * x/y(x+y)/(y+z)

= ((Xy+xz)/(xz-z²) )*(x/z(x-z)/(y+z))

= (X/z(y+z)/(x-z)) * (x/z(x-z)/(y+z))

= X²/Z²

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300-20+100 divided by 4=

Firlakuza [10]

Answer:

Step-by-step explanation:

300-20=280

280+100=380

380÷4=95

There you go...

8 0

2 years ago

There are 18 cupcakes.How many three fourths size servings can you make?

kramer

Answer:

24 servings

Step-by-step explanation:

A serving is 3/4 of a cupcake and you have 18 cupcakes.

Logically, you have more than 18 servings. Therefore the answer makes sense.

Divide the total number of cupcakes by the size of one serving.

18 cupcakes ÷ (3/4) = 24 servings

You can make 24 servings.

5 0

3 years ago

It seems to me that 2 shelves with 20 books each would work as well as 20s with 2b, 4s with 10b, 10s with 4b, 5s with 8b and 8s

Dimas [21]

Well, if you are trying to fit all of the books in each shelf then it would not work because the number of books should have an even number on each shelf. Like how 2 shelves can fit 20 books. It means that each shelf contains 10 books.

6 0

3 years ago

Sally is filling glass containers in the shape of cylinders with different colors of sand. Each cylinder has a radius of 4 inche

ryzh [129]

Part A.
We are given the total volume of the amount of sand she will want to fill
we are also given the shape and dimensions of the cylinders
Total volume of the sand = 1,000
Cylinder= radius 4 in, and height 8 in
the volume of a cylinder is V=πr^2h
We will solve for the volume of the cylinders
V=πr^2hV=π(4)^2*(10)
V = π (16) * (10)
V = π 160
The volume of the cylinders she wants to fill is 502.65 in^3
How many cylinders will she need
Well,
1000/502.65 ≈ 1.98
She will need two cylinder cans to fill with the 1,000 in^3 of sand

Part B.
To see if this is true, we find the half of the original cylinder's radius and height then solve for the volume and compare
V=πr^2h
The height and radius of the original cylinders were 4 r and 8h
we will find half of that which will be : 2 r and 4 h
Now solve for the volume V=πr^2h
V=π(2)^2* (4)
V=π (4)*(4)
V = π 16
V ≈ 50.26 inches ^3
The volume of the original cylinders was 502.65 in^3 and the volume of the new cylinders is 50.26 in^3... Clearly the volume of the new cylinders is NOT half of the original. Sally is not correct!

Hope this helps :)

7 0

3 years ago

11. Which of the following could be included in

d1i1m1o1n [39]

Answer:

I belive the answer is D?

Step-by-step explanation:

3 0

3 years ago