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Alekssandra [29.7K]
3 years ago
12

A TV is on sale for $125 off. The sale price is $875.

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0

Let's call the original price o and the sale price s. Given the information in the problem, we can say:

o - s = 125

(The sale price subtracted from the original price is the sale on the product, which we know is 125.)


We know the value of s, which is 875. If we substitute this into the equation we found, we can find o, as shown below:

o - s =125

  • Original equation

o - 875 = 125

  • Substitute in 875 for s

o = 1000

  • Add 875 to both sides of the equation

The original price is $1,000.


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matrenka [14]

Answer:

I got eleven 5 dollar bills and and I got 3 ten dollar bills

Step-by-step explanation:

what i did was start out with 85/5, then that was 17 so I started minusing 2 fives to = 1 ten so 15 5's and 1, 10 then so forth 13 5 dollar bills and 2 10 dollar bills, 11 5 dollar bills and 3 ten dollar bills. y=-2x+17

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2 years ago
Solve the following problems. Choose the letter of the correct answer. (Show your complete solutions.)
motikmotik

:1

i didnt understand the question because of my English sorry

:2

we all know that the total of degrees is 180 so 70+70=140

180-140=40

so the answer is 40

3:

we have a figure with 4 angle so the total of degrees is 360 so the answer is 126

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x+40=90

X=50 the answer and if you want to try again choose the second one

2x-10=90

2x=100

X=50 same answe you see

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6 0
2 years ago
Solve 5x^2-2=-12 by taking the square root
k0ka [10]

Answer:

x = ±i√2

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 II</u>

Imaginary root <em>i</em>

  • <em>i</em> = √-1

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

5x² - 2 = -12

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

  1. [Addition Property of Equality] Add 2 on both sides:                                    5x² = -10
  2. [Division Property of Equality] Divide 5 on both sides:                                 x² = -2
  3. [Equality Property] Square root both sides:                                                    x = ±√-2
  4. Rewrite:                                                                                                             x = ±√-1 · √2
  5. Simplify:                                                                                                             x = ±i√2
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30 times greater I hope it helps unlike that other answer...
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