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melomori [17]
3 years ago
12

Mr johnson sells erasers for 3 dollars each he sold 96 last week and sold 204 erasers this week about how much morr mone did he

make this week
Mathematics
1 answer:
Alecsey [184]3 years ago
7 0
Last Week's Earning = 96 x $3 = $288

This Week's Earning = 204 x $3 = $612

Difference = $612 - $288 = $324

---------------------------------------------------------------------------------
Answer: He makes $324 more this week than last week.
---------------------------------------------------------------------------------

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Answer:

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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
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Equality Properties

Step-by-step explanation:

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

4x + 9 = 2x + 15

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

  1. Subtract 2x on both sides:                    2x + 9 = 15
  2. Subtract 9 on both sides:                      2x = 6
  3. Divide 2 on both sides:                          x = 3

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                    4(3) + 9 = 2(3) + 15
  2. Multiply:                               12 + 9 = 6 + 15
  3. Add:                                     21 = 21

Here we see that 21 does indeed equal 21.

∴ x = 3 is the solution to the equation.

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