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Setler79 [48]
3 years ago
11

2. In 2010. Clark's enrollment was 2800. Enrollment has grown approximately 2.5% each year since then, Write an exponential func

tion and use it to estimate the enrollment in 2022.​
Mathematics
1 answer:
Rzqust [24]3 years ago
8 0

Answer:

Step-by-step explanation:

An exponential equation has the form

y=ar^x\text{y=final, a=initial, r=common ratio, x=term number}\\ \\ y=2800(1.025^x)\\ \\ y(2022)=2800(1.025^{(2020-2010)}\\ \\ y(2022)\approx 3766

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LUCKY_DIMON [66]

Hello

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Solve these simultaneous equations:
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Answer:

1) We have the system:

5*x - 3*y = 15

4*x + 3*y = 6

To solve this, we first need to isolate one of the variables in one of the equations, let's isolate x in the first equation:

x = 15/5 + (3/5)*y = 3 + (3/5)*y

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and solve this for y.

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2) Now we have the system:

2*x + 5*y = 26

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52 - 10*y + 3*y = 24

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52 - 24 = 7*y

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3*x + 3*y = 39

2*x - 3*y = -2

first we isolate x in the first equation:

x = 39/3 - 3*y/3 = 13 - y

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3 years ago
7(2x-5)=21<br><br> What is x?
Over [174]

Answer:

x = 4

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 Equation</u>

7(2x - 5) = 21

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

  1. Distribute 7:                   2x - 5 = 3
  2. Isolate <em>x</em> term:                2x = 8
  3. Isolate <em>x</em>:                         x = 4

<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>:                  7(2(4) - 5) = 21
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Here we see that 21 does indeed equal 21.

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