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ra1l [238]
3 years ago
15

What is the value of x in the equation -2/5x -2 =18

Mathematics
1 answer:
Sedbober [7]3 years ago
8 0

Answer:

x = -50

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

-2/5x - 2 = 18

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

  1. [Addition Property of Equality] Add 2 on both sides:                                    -2/5x = 20
  2. [Division Property of Equality] Divide -2/5 on both sides:                              x = -50
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1.09 times 10 to the negative 3rd power
adoni [48]

Answer:

0.00109

Step-by-step explanation:

1.09(10^−3)

=1.09*10^−3

=1.09* 1 /10*10*10

=0.00109

5 0
3 years ago
Find the area of the un-shaded part. ABCD and EFGH are two rectangles. AB = 10 inches, BD = 8 inches EF = 6 inches FH = 4 inches
Serggg [28]

Answer:

56 inches!

Step-by-step explanation:

Rectangles ABCD and EFGH are concentric, that means that they are almost the same but their sides have a different ratio.

First, lets find the area of EFGH.

1). Area of EFGH = a * b = 4 * 6 = 24 inches

Then we will find the area of ABCD.

2). Area of ABCD = a * b = 10 * 8 = 80 inches.

Now we know the areas of the rectangles, we can find the area of the un-shaded part.

3). Area of ABCD - Area of EFGH = 80 - 24 = 56 inches

So, 56 inches will be your answer.

Hope this helps))) ^‿^

7 0
3 years ago
What is the answer to 8+×/5=-2 and ×/3-2=7
egoroff_w [7]

8 + x / 5 = -2

-8              -8

x / 5 = -10

x = -2


x / 3 - 2 = 7

+ 2          + 2

x / 3 = 9

x = 3

6 0
3 years ago
For these problems,
ra1l [238]

Answer:

y = 6x + 100

Step-by-step explanation:

Slope-intercept form is y = mx + b, where m is the cost to produce each item and b is the fixed cost. Let's input the given values for m and b into the equation:

y = 6x + 100

This is the cost equation. $6 multiplied by x amount of items pluss the fixed cost of $100 gives you the total cost (y) to produce x amount of items.

Hope this helps :)

8 0
3 years ago
0.03 is 10 times as much as what
nikitadnepr [17]
Divide 0.03 by 10.
This will give you 0.003 which is your answer.
To check, just multiply 0.003 by ten and you'll see that 0.03 is 10x more than it.
5 0
4 years ago
Read 2 more answers
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