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tankabanditka [31]
3 years ago
10

What is the value of a in A-17/3=-20?

Mathematics
1 answer:
Rina8888 [55]3 years ago
4 0

\dfrac{A-17}{3}=-20\qquad|\cdot3\\\\A-17=-60\qquad|+17\\\\A=-43


A-\dfrac{17}{3}=-20\\\\A-\dfrac{17}{3}=\dfrac{-60}{3}\qquad|+\dfrac{17}{3}\\\\A=-\dfrac{43}{3}

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astraxan [27]

Answer: (i) A = 2500 ((1.035)^{n}

(ii) A =$ 4,974.47

Step-by-step explanation:'

The exponential function is given as :

A = P(1+r)^{n}

Where :

A = amount

P = principal

r = rate %

n = number of years

substituting , the exponential function to model the situation becomes

A = 2500 ((1.035)^{n}

(ii) when n = 20 , the Amount becomes

A = 2500((1.035)^{20}

A =$ 4,974.47

4 0
3 years ago
9m-m+3=-2(m+1) <br> this thing wants 20 characters so..HI!
MrMuchimi

Answer:

m = -1/2

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

Step-by-step explanation:

<u>Step 1: Define</u>

9m - m + 3 = -2(m + 1)

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

  1. Combine like terms:                    8m + 3 = -2(m + 1)
  2. Distribute -2:                                8m + 3 = -2m - 2
  3. Add 2m on both sides:                10m + 3 = -2
  4. Isolate <em>m</em> term:                             10m = -5
  5. Isolate <em>m</em>:                                      m = -1/2
6 0
2 years ago
A) single step Equation <br><br> 1) X + 7 = 9
pshichka [43]
X=2
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amid [387]

Equation (1)

-5 - 6y = -32

Equation (2)

4x - 6y = 4

Get y alone in equation (1)

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Insert y in equation (2)

4x - 6 \cdot \frac{9}{2} = 4\\4x - 27 = 4\\4x = 4 + 27\\4x = 31\\x = \frac{31}{4}

8 0
3 years ago
The length of a rectangle is four feet longer than the width. the area is 21. find the dimension
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The length is 7 and the width is 3
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