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marysya [2.9K]
3 years ago
8

Evaluate 5x2–3(x–2)+x for x=3

Mathematics
2 answers:
kherson [118]3 years ago
7 0

The solution of 5x^2–3(x–2)+x for x = 3 is 45

<u>Solution:</u>

In this question we have been given an equation and asked to solve for a particular value of ‘x’.

The given equation is:

5x^{2}-3(x-2)+x

We have been asked to solve it for x=3.

So, we need to substitute the value of x as 3 in the equation and then simplify it as follows:

\begin{array}{l}{=5\left(3^{2}\right)-3(3-2)+3} \\\\ {=5(9)-3(1)+3} \\\\ {=45-3+3=45}\end{array}

Therefore, on solving the equation for x = 3 we get 45

Darina [25.2K]3 years ago
5 0
10 (assuming you meant 5 TIMES 2

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Which is the best solution set for the inequality 9 - 5x &lt; 54 ?
Goryan [66]

Answer:

x > -9

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
  • Subtract Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

9 - 5x < 54

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

  1. [Subtraction Property of Equality] Subtract 9 on both sides:                      -5x < 45
  2. [Division Property of Equality] Divide -5 on both sides:                              x > -9

Here we see that any value <em>x</em> greater than -9 would work as a solution to the inequality.

6 0
3 years ago
327.46 in expanded form
TEA [102]
The answer is 300 + 20 + 7 + .40 + .6
8 0
4 years ago
(-3)2 + (-8)•(-2)<br> Your answer
Darina [25.2K]

Answer:

10 is answer of this question

5 0
3 years ago
13 is 26 percent of what number
Nataliya [291]
We have an equation: 13/?= 26/100

Cross multiply:
26*?= 13*100
⇒ ?= 13*100/26= 50

13 is 26% of 50~
6 0
3 years ago
Read 2 more answers
Solve the Equations
kkurt [141]

Answer and Step-by-step explanation:

1) - 6.5 r = - 58.5

- r = - 58.5/6.5

- r = - 9

<h2>r = 9 </h2>

2) c - 5.5 = 2.3

c = 2.3 + 5.5

<h2>c = 7.8</h2>

3) 56 = - 5.6s

56/5.6 = - s

10 = - s

- 10 = s

<h2>s = - 10</h2>

4) d/4 = 4.7

d = 4.7 / 1/4

d = 4.7 * 4

<h2>d = 18.8</h2>

5) - 9 = 6.9 + x

- 9 - 6.9 = x

- 15.9 = x

<h2>x = - 15.9</h2>

6) 23.5 = 4.7z

23.5/4.7 = z

5 = z

<h2>z = 5</h2>

7) - 2.7 = v + 4.9

- 2.7 - 4.9 = v

- 7.6 = v

<h2>v = - 7.6</h2>

8) 2.6 = k/3

k/3 = 2.6

k = 2.6 / 1/3

k = 2.6 * 3

<h2>k = 7.8</h2>

9) - 5.6f = 44.8

- f = 44.8/5.6

- f = 8

<h2>f = - 8</h2><h2 />

hope it helps, my friend

3 0
3 years ago
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