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Andrews [41]
3 years ago
10

Five times a number decreased by nine is equal to twice the number increased by 23. Which equation could be used to solve

Mathematics
2 answers:
RideAnS [48]3 years ago
7 0

Answer:

5x-9=2x+23

Step-by-step explanation:

"Five times a number" is '5x'.

"Decreased by nine is" '-9'.

"Is equal to" is '='.

"Twice the number" is '2x'.

"Increased by 23" is '+ 23'.

Put them together: 5x-9=2x+23

5x - 9 = 2x + 23 should be the correct answer.

Monica [59]3 years ago
6 0

Answer:

5x-9=2x+23

Step-by-step explanation:

B

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What is four and five eighths as a improper fraction and a mixed number
Afina-wow [57]
4 5/8 as an improper fraction is 37/8
——> 8*4=32 32+5=37
As a mixed number it is the same I think. 5 can’t decide into 8 so it stays 4 5/8.

Hopefully this helps...
5 0
3 years ago
What are the coordinates of the point (-4,-10) after a 180 rotation about the orgin and then a translation 1 unit right
goblinko [34]

1. Rotation by 180° (clockwise or anti-clockwise) about the origin has a rule:

(x,y)→(-x,-y).

Then

(-4,-10)→(4,10).

2. Translation 1 unit to the right has a rule:

(x,y)→(x+1,y).

Then

(4,10)→(5,10).

3. After rotation and translation the image of point (-4,-10) is point (5,10).

Answer: (5,10).

5 0
3 years ago
A pyramid at a museum has a height of 21 meters and a square base with side lengths of 30 meters. 21 m 30 m What is the approxim
Orlov [11]

Answer: 6,300 m^3

Step-by-step explanation:

Put numbers into calculator

5 0
2 years ago
0.2x + 1 = 1.6x + 3.1<br> What value of x satisfies the equation above?
guapka [62]

Answer:

x = -1.5

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

0.2x + 1 = 1.6x + 3.1

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 0.2x on both sides:          1 = 1.4x + 3.1
  2. Subtract 3.1 on both sides:             -2.1 = 1.4x
  3. Divide both sides by 1.4:                 -1.5 = x
  4. Rewrite:                                            x = -1.5

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitution:                    0.2(-1.5) + 1 = 1.6(-1.5) + 3.1
  2. Multiply:                           -0.3 + 1 = -2.4 + 3.1
  3. Add:                                 0.7 = 0.7
5 0
3 years ago
Read 2 more answers
HELP PLEASE HELP IF YOU CAN :)
a_sh-v [17]

Answer:

A

Step-by-step explanation:

If you plug them in you get 2≥-1

4 0
3 years ago
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