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nikdorinn [45]
3 years ago
12

What are some multi-step equations that get you -27?

Mathematics
2 answers:
netineya [11]3 years ago
6 0
9-36=-3(6+3)
-27=-18-9
-27=-27
mars1129 [50]3 years ago
5 0
1/9x-3=-6; you add the 3 on each sides which crosses out on the left; then multiply by the reciprocal of 1/9 which is 9 and you get 9*-3 which equals -27

Good luck!
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Find the volume of the figure. Round to the nearest tenth if necessary.
lisov135 [29]

Answer:

Volume = 204 m³

Step-by-step explanation:

The figure is a triangular prism

Volume of the triangular prism = ½ × a × c × h

Where,

a = 8 m

c = 5.1 m

h = 10 m

Plug in the known values and solve

Volume = ½ × 8 × 5.1 × 10

Volume = 4 × 5.1 × 10

Volume = 204 m³

8 0
3 years ago
Simplify this expression.<br> 3 + 2m -1 + 5m + 12<br> [?]m + [ ]
garik1379 [7]

Answer:

7(m + 2)

Step-by-step explanation:

1) <em>Add the numbers</em>

  • 3 + 2m-1 + 5m + 12
  • 14 + 2m + 5m

2)<em> Combine like terms</em>

  • 14 + 2m + 5m
  • 14 + 7m


3) <em>Rearrange terms</em>

  • 14 + 7m
  • 7m + 14

4) <em>Common factor</em>

<em />

- <em>Factor by grouping</em>

  • 3 + 2m - 1+ 5m + 12
  • 7m + 14

- <em>Factor by grouping</em>

  • 7m + 14
  • 7(m + 2)

⇒ 3 + 2m - 1 + 5m + 12

⇒ 7(m + 2)

Solution:

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8 0
2 years ago
Im confused ab this i didnt learn this
Effectus [21]

Answer:

<h2>90</h2>

Step-by-step explanation:

30% of 90 = 27

To explain this in a simple way we can check the work

10% of 90 = 9

9 x 3 = 27

4 0
3 years ago
The digit in the tens placeof a two digit is three times that in the units place. if the digits are reversed , the new no will b
Charra [1.4K]

If a number's ten digit is x and the units digit is y, then you can write the number as 10x+y.

Obviously, inverting the digits would lead to the number 10y+x.

Since this new number is 36 less than the original, we have

10y+x = 10x+y-36 \iff 9x-9y=36\iff x-y=4

Since we also know that the digit in the tens place is three times that in the units place, we can add an equation to form a system:

\begin{cases}x-y=4\\x=3y\end{cases}\iff 3y-y=4\iff y=2

And thus x=2\cdot 3=6

6 0
3 years ago
The area of the floor is 6,175 square feet. The length of the floor is 95 feet. The width is w feet.
Anestetic [448]

Answer:

the width is 65

Step-by-step explanation:

width x length = area

w x 95 = 6,175

6,175 / 95 = 65

65 x 95 = 6175

3 0
3 years ago
Read 2 more answers
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