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3 years ago

(12+13)x5-20= what’s the answer to this problem

Mathematics

2 answers:

kakasveta [241]3 years ago

7 0

(12+13)x5-20=(25)x5-20
=125-20
=105

Sladkaya [172]3 years ago

5 0

The answer is 125x - 20

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-23=5+ 4x what does x equals?

tester [92]

Answer:

x = -7

Step-by-step explanation:

- 23 = 5 + 4x

- 5 = - 5

- 28 = 4x

/4 = /4

- 7 = x

5 0

3 years ago

Read 2 more answers

Log(2t+4)=log(14-3t)

barxatty [35]

Answer:

t = 2

Step-by-step explanation:

$2t + 4 = 14 - 3t$

$5t = 10$

$t = 2$

Checking:

$log(2(2) + 4) = log(8)$

$log(14 - 3(2)) = log(8)$

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2 years ago

Which of the following is slope of the line that passes through the points (-1 , 10 ) and (5,2)

san4es73 [151]

Answer:

$m=\frac{-4}{3}$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-1, 10)

Point (5, 2)

<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 [SF]: $m=\frac{2-10}{5+1}$
Subtract/Add: $m=\frac{-8}{6}$
Simplify: $m=\frac{-4}{3}$

3 0

3 years ago

How many solutions does the system have? \begin{cases} & y = 2x-1 \\\\ & y = 2x+6 \end{cases} ⎩ ⎪ ⎨ ⎪ ⎧ y=2x−1 y=2x+

coldgirl [10]

Answer:

A) y=2x−1

B) y=2x+6

The equations reduce to:

-1 = 6

Which is NOT true so those equations have NO solution.

Step-by-step explanation:

8 0

3 years ago

Donna makes $9.75 per hour at her job. Kaylee makes $4 per hour at her job, and she receives a $0.25 raise each month. Which ine

n200080 [17]

<h2>Answer:</h2><h2>Option D is the correct answer, 4 + 0.25x ≤ 9.75</h2>

Step-by-step explanation:

Donna earns per hour at her job = $9.75

Kaylee earns per hour at her job = $4

and she receives a raise each month = 0.25x

Kaylee's total earning = 4 + 0.25x

Comparing both the person's earning,

to find the number of months it will take for Kaylee to earn at least as much as Donna per hour is,

atleast as much as represents less than or equal to

Option D, 4 + 0.25x ≤ 9.75

5 0

4 years ago