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4 years ago

Please answer the equation 5n+1/8=1/2

2 answers:

7 0

$5n+\frac{1}{8}=\frac{1}{2}\\\\5n=\frac{4}{8}-\frac{1}{8}\\\\5n=\frac{3}{8}\ \ \ \ \ \ |:5\\\\n=\frac{3}{8}\cdot\frac{1}{5}\\\\n=\frac{3}{40}\\\\Answer\ is\ \frac{3}{40}.$

Mamont248 [21]4 years ago

4 0

$5n^{(8}+\frac{1}{8}=\frac{1}{2}^{(4} \\\\ 40n+1=4 \\\\ 40n=4-1 \\\\ 40n=3\\\\ \boxed{n=\frac{3}{40}}$

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If x^2=20 what is the value of x will give brainliest for answer

Schach [20]

Answer:

x² - 20 = 0

Using the quadratic formula

$x = \frac{ - b± \sqrt{( {b})^{2} - 4ac } }{2a}$

a = 1 b = 0 c = -20

So we have

$x = \frac{ - 0 ± \sqrt{ {0}^{2} - 4(1)( -20)} }{2(1)} \\ \\ x = \frac{± \sqrt{80} }{2} \\ \\ x = \frac{±4 \sqrt{5} }{2} \\ \\ \\ x = ±2 \sqrt{5} \\ \\ \\ x = 2 \sqrt{5} \: \: \: or \: \: \: x = - 2 \sqrt{5}$

Hope this helps you.

8 0

3 years ago

A business spends $14,000 to produce a new board game. Each game costs $1.90 to produce and is sold for $9.99. How many games mu

barxatty [35]

Divide $14,000 by $9.99 = 1401 board games

Since we know $14,00 is how much has been spent on the board game in total, the price to make each board ($1.90) game isn't necessarily relevant.

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3 0

3 years ago

Read 2 more answers

Solve 3(x - 2) < 18. A{x\x<8) B{x1x > 8) C[xlx<-8} D{xl x>-8)

Evgen [1.6K]

Answer:

A. {x | x < 8}

Step-by-step explanation:

First, we divide both sides by 3.

3(x - 2)/3 < 18/3

Then simplify.

x - 2 < 6

Lastly, add 2 to both sides.

x - 2 + 2 < 6 + 2

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4 years ago

Solve each system of equations by substitution. Clearly identify your solution.

Stels [109]

Answer:

(-3, 5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Coordinates (x, y)
Terms/Coefficients
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = x + 8

x + y = 2

Step 2: Solve for x

Substitution

Substitute in y [2nd Equation]: x + x + 8 = 2
Combine like terms: 2x + 8 = 2
[Subtraction Property of Equality] Subtract 8 on both sides: 2x = -6
[Division Property of Equality] Divide 2 on both sides: x = -3

Step 3: Solve for y

Substitute in x [1st Equation]: y = -3 + 8
Add: y = 5

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3 years ago

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viva [34]

Answer:

A function is a relation which describes that there should be only one output for each input (or) we can say that a special kind of relation (a set of ordered pairs), which follows a rule i.e., every X-value should be associated with only one y-value is called a function.

Step-by-step explanation:

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3 years ago