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2 years ago

5x+3x=420 12x+9=1080 What does x and y equal?

Mathematics

2 answers:

Korvikt [17]2 years ago

7 0

Answer:

8x-55818-t

Step-by-step explanation:

Over [174]2 years ago

6 0

PLEASE MARK BRAINLIEST!

Answer for 5x+3x=420

Step 1: Simplify both sides of the equation.

5x+3x=420

(5x+3x)=420(Combine Like Terms)

8x=420

Step 2: Divide both sides by 8.

$\frac{8x}{8}$ = $\frac{420}{8}$

x = $\frac{105}{2}$

Answer for 12x+9=1080

Step 1: Subtract 9 from both sides.

12x+9−9=1080−9

12x=1071

Step 2: Divide both sides by 12.

$\frac{12x}{12}$ = $\frac{1071}{12}$

x = $\frac{357}{4}$

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Given the system of inequalities:

Crazy boy [7]

Answer:

$4x-5y$ slope intercept form is option 3 - $y>\frac{4x}{5}-\frac{1}{5}$

$\frac{1}{2}y-x$ slope intercept form is option 4 - $y$

Step-by-step explanation:

Given : The system of inequalities $4x-5y$ and $\frac{1}{2}y-x$

To find : Which shows the given inequalities in slope-intercept form?

Solution :

The slope intercept form is $y=mx+b$ where m is the slope and b is y-intercept.

First inequality is $4x-5y$

Now we take y to one side by subtracting 4x both side,

$-5y$

Divide both side by 5,

$-y$

Multiply both side by -1,

$y>-\frac{1-4x}{5}$

$y>\frac{4x-1}{5}$

$y>\frac{4x}{5}-\frac{1}{5}$

So, Option 3 is correct.

Second inequality is $\frac{1}{2}y-x$

Now we take y to one side by adding x both side,

$\frac{1}{2}y$

Multiply both side by 2,

$y$

So, Option 4 is correct.

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3 years ago

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