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3 years ago

What is the density ?

2 answers:

7 0

Density is the degree of compactness of a substance. It is the degree of consistency measured by the quantity of mass per unit volume. It is the relationship between the mass of the substance and the amount of space it takes up. I hope it helps.

torisob [31]3 years ago

6 0

The mass of substance per unit of volume.

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Suzanne wants to put a fence around her square garden. If the garden covers an area of 49ft^2, how many feet of fencing does she

lina2011 [118]

Answer:

The area for a square is given by:

$A = x^2$

And we can find the dimension for one side like this:

$x = \sqrt{A}$

Replacing we got:

$x = \sqrt{49 ft^2}= 7ft$

Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:

$P = 4x$ and replacing we got:

$P = 4*7 ft = 28 ft$

Step-by-step explanation:

For this case we know that Suzanne want to put a fance around a square garden with an area of 49 ft^2

The area for a square is given by:

$A = x^2$

And we can find the dimension for one side like this:

$x = \sqrt{A}$

Replacing we got:

$x = \sqrt{49 ft^2}= 7ft$

Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:

$P = 4x$ and replacing we got:

$P = 4*7 ft = 28 ft$

8 0

3 years ago

Write an equivalent expression for 5(2x + y - 3z) by modeling and using the distributive property.

soldi70 [24.7K]

The answer is 10x + 5y - 15z

5 0

3 years ago

Read 2 more answers

Find the sum using fraction bars or a paper and pencil. Write your answer in simplest form.

vampirchik [111]

First, find the LCD. That is 12.

1/3 = 4/12
1/4 = 3 /12

4/12 + 3/12 + 7/12

3 0

3 years ago

Read 2 more answers

The question is in the picture.

kiruha [24]

varies directly means $\frac{y}{x} = k$

inserting y = -18 and x = 3 ⇒ $\frac{-18}{3} = k$ ⇒ -6 = k

next, insert k = -6 into the varies directly equation and solve for y. y = -6x

Answer: C

4 0

3 years ago

Me ayudan x favor grasie <br>doy corona y corason

KATRIN_1 [288]

Answer:

1,125

Step-by-step explanation:

I think this might be right if not sorry!

7 0

3 years ago