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Sphinxa [80]
3 years ago
14

Enter an equation and an answer to the following question:

Mathematics
2 answers:
yKpoI14uk [10]3 years ago
8 0
If you take 10% of $35 yuo get $3.50, and then add that on and 35 + 3.5 = 38.50 so the original price is $38.5
xz_007 [3.2K]3 years ago
6 0
100÷10= 10 ×35= $350 therefore the answer is $350
to try if it is right
10%of 350 =35.so the answer is $350
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7 0
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Can anyone help me with this
trapecia [35]

Answer:

a)$2800 , $0

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8 0
3 years ago
-3(-4n + 30) = -30 need help​
DIA [1.3K]

First we will do -3 times everything in the parenthesis.

-3 times -4n = 12n

-3 times 30 = -90

SO,

12n - 90 = -30

       +90    +90

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6 0
3 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
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