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marta [7]
4 years ago
10

Simplify the algebraic expression -2(x - 3) + 4(-2 x + 8) *Plz explain your answer*

Mathematics
1 answer:
Murrr4er [49]4 years ago
6 0

-10x+38

Let's simplify step-by-step.

- 2(x – 3) +40-2r + 8)

Distribute:

= (-2)(x) + (-2)(-3) + (4)(-2x) + (4)(8)

= -2x + 6+ - 8x + 32

Combine Like Terms:

= -2x + 6 + - 8x + 32

= (-2x + - 8x) + (6 + 32)

-10x + 38

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4/ (4/ 9) = (4/ 4)/ 9 true or false
labwork [276]
False, moving the parenthesis works in certain problems like 1x(2x3)=(1x2)x3

but with division it must be perfect otherwise a simple percentage can ruin your whole division problem.
5 0
4 years ago
(ZOOM IN TO SEE THE QUESTION) I need help!!!
Darina [25.2K]

Answer:

359 is your answer

Step-by-step explanation:

Have a good day ;-)

3 0
3 years ago
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PLZZZZZ NEED HELP!!!!!!
tia_tia [17]

Answer:

Total annual premium = $1770.10

Step-by-step explanation:

Given the information in the problem, looking at the different categories of each level of insurance and the corresponding premium will give you the amounts for each part.  To find the total annual premium, you need to find the sum of all the parts and then multiply this by the rating factor for his gender and age group.  

Since he is purchasing 100/300/100 liability insurance, you need to first look at the 'Liability Insurance' table and locate the 100/300 option under 'Bodily Injury'.  This premium is $450.  Also, he is purchasing an additional 100 for Property damage which is an added premium of $375.

Next, he is getting collision insurance with a $100 deductible.  This is the second column in the second table and has a premium of $215.  He also wants comprehensive insurance with a $250 deductible which has a premium of $102.  

Since he is a 26-year-old male, his rating is 1.55, so we will need to multiply the sum of his premiums by this number:

(450 + 375 + 215 + 102)1.55 = $1770.10  

3 0
4 years ago
Expand and simplify 5(2x-1)-2(3x+2)
kupik [55]

Answer:

4x - 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients/Degrees

Step-by-step explanation:

<u>Step 1: Define</u>

5(2x - 1) - 2(3x + 2)

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

  1. Distribute:                               10x - 5 - 6x - 4
  2. Combine like terms (x):          4x - 5 - 4
  3. Combine like terms (Z):         4x - 9
6 0
3 years ago
Solve for this equation. x-2/5=1/5
Studentka2010 [4]

Answer:

3/5   or

0.6

Step-by-step explanation:

You could change these fractions to decimals, but you may not be convinced that the answer you get is the same as just using fractions. I'll start by using fractions.

x - 2/5 = 1/5                        Add 2/5 to both sides

x - 2/5 + 2/5 = 1/5 + 2/5     The left side cancels to 0.

x = 1/5 + 2/5                       The denominators (bottom the fraction) are the same. Just add the tops.

x = (1 + 2)/5

x = 3/5

=======================

If you use your calculator to find 2/5 and 1/5, you can get the same answer as 3/5

2

÷

5

=

0.4

By the same method, 1/5 = 0.2

Substitute into the original equation

x - 0.4 = 0.2                       Add 0.4 to both sides

x - 0.4 +0.4 = 0.2 + 0.4    The left side reduces just to x

x = 0.2 +0.4

x = 0.6

If you let your calculator do the work, like this

3

÷

5              

=

0.6

The answers are the same.

7 0
3 years ago
Read 2 more answers
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