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3 years ago

15

Solve for n. 583 = (n ÷ 10) + 3

2 answers:

Archy [21]3 years ago

8 0

Answer:

Hope this step-by-step helps:

Step-by-step explanation:

In a two-variable problem rewrite the equations so that when the equations are added, one of the variables is eliminated, and then solve for the remaining variable. Step 1: Multiply equation (1) by -5 and add it to equation (2) to form equation (3) with just one variable.

Reptile [31]3 years ago

8 0

Answer:

n=5800........

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2 years ago

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3 years ago

The value of a car in each of its first 3 years is: $24,000, $18,000, $13,500. These amounts form a sequence. Which of the follo

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Step-by-step explanation:

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3 years ago

The average number of mosquitoes in a stagnant pond is 80 per square meter with a standard deviation of 12. If 36 square meters

svp [43]

Answer:

a) 18.4%

Step-by-step explanation:

Assuming a normal distribution, the z-score (z) for the probability of the average of the mosquitoes count being 'X' is given by:

$z(X)=\frac{X-\mu }{\frac{\sigma}{\sqrt{n}}}$

Where 'μ' is the distribution mean, 'σ' is the standard deviation and 'n' is the number of square meters chosen.

For X = 81.8 and n=36:

$z(X)=\frac{81.8 - 80}{\frac{12}{\sqrt{36}}}\\z(X)= 0.9$

A z-score of 0.9 is equivalent to the 81.59 th percentile in a normal distribution.

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3 years ago

Find the slope given: (3, -10) & (4, -21)<br> m =

AleksAgata [21]

Answer:

$\displaystyle m=-11$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (3, -10)

Point (4, -21)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-21+10}{4-3}$
[Fraction] Add/Subtract: $\displaystyle m=\frac{-11}{1}$
[Fraction] Divide: $\displaystyle m=-11$

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2 years ago