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Harrizon [31]
3 years ago
8

Which expressions are equivalent to ? Check all that apply.

Mathematics
2 answers:
GrogVix [38]3 years ago
8 0

Answer:

6.2+8.7+8.9x

Step-by-step explanation:

For expressions to be equivalent, they must simplify to the same lowest form. 8.9x+6.2+8.7 simplifies to 8.9x +14.9.

Each of the expressions below must simplify to 8.9x + 14.9 to be equivalent.

9x+6+9  = 9x + 15 NO

3.9+6.2+8.7x  = 8.7x + 10.1 NO

3.7+8.9+6.2  = 18.8 NO

6.2+8.7+8.9  = 23.8 NO

6.2+8.7+8.9x  = 8.9x + 14.9 YES

3.9+6.2x+8.7  = 6.2x + 12.6 NO

3.9x+8.7+6.2 = 3.9x + 14.9 NO

Julli [10]3 years ago
4 0

Answer:

Step-by-step explanation:

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kaheart [24]
So according to the question statements 

6% of the $40k and 7$ of the second $40k and 9% ammount of the $80k 

the answer would be 

40000 * 0.06
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7 0
3 years ago
What is the solution to the system of equations below?<br> 5 x + 2y = -3<br> 3x + 6y = 6
Orlov [11]
Eqn (1)*3: 15x + 6y = -9 -> Eqn (3)
Eqn (3) - Eqn (2): 12x = -15
x = -5/4 = -1 1/4
Eqn (2): -15/4 + 6y = 6
6y = 9 3/4
y = 1 5/8

x = -1 1/4
y= 1 5/8
3 0
3 years ago
Stan scored 548,751 points on a computer game.   What was his score rounded to the nearest thousand?
ivolga24 [154]
549,000. Your welcome.
8 0
3 years ago
Four w plus ten equals negative w
ohaa [14]

Answer:

4w+10=-w

w=-2

Step-by-step explanation:

First, write out the equation in the algebraic form to make it easier to solve. This equation written out is 4w+10=-w. Then, isolate the variable and solve. Do this by subtracting 4w from both sides. Then, divide both sides by -5.

  • 4w+10=-w
  • 10=-5w
  • -2=w
4 0
3 years ago
Hardy is packing his book collection into a box. Each book measures 4in by 6in by 1 inch. The box he uses measures 24in by 24in
liberstina [14]

Answer:

<u>1. 192 books.</u>

<u>2. 96 books.</u>

<u>3. 24 books.</u>

Step-by-step explanation:

1. Let's find the volume of each book and the volume of the box, this way:

Volume of a book = 4 * 6 * 1 = 24 inches ³

Volume of the box = 24 * 24 * 8 = 4,608 inches ³

2. If Hardy fills the box completely, what is the greatest number of books that fit into the box?

Greatest number of books = Volume of the box/Volume of a book

Greatest number of books = 4,608/24

<u>Greatest number of books = 192</u>

3. If Hardy fills the box completely with the least number of layers, there will be (blank) books on the bottom layer.

The height of the box is 8 inches, so it can only can hold 2 or 8 layers of books, since the books are 4 * 6 * 1 inches.

Greatest number of layers = Height of the box/Width of a book

Greatest number of layers = 8/1 = 8

Minimum number of layers = Height of the box/Height of a book

Minimum number of layers = 8/4 = 2

Upon saying that, we have:

Number of books per layer = Greatest number of books/Minimum number of layers

<u>Number of books per layer = 192/2 = 96 </u>

4. To fill the box completely, Hardy places 8 layers of books in the box. There are (blank) books in each layer.

Number of books per layer = Greatest number of books/Number of layers

Number of books per layer = 192/8

<u> Number of books per layer = 24</u>

5 0
3 years ago
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