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3 years ago

Find a number that is 15 more than 4 times its opposite

1 answer:

5 0

$x-\ number\\\\
x-15=4(-x)\\\\
x-15=-4x\ \ \ \ |subtract\ x\\\\
-15=-5x\ \ \ \ |divide\ by\ -5\\\\
x=3\\\\Number\ is\ equal\ to\ 3.$

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BRAINLIEST ASAP! PLEASE HELP ME :)

jeyben [28]

<em>See above information</em>

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7 0

3 years ago

Using long division to find the quotient, what changes do you first

lora16 [44]

Answer:

$\frac{125x^3 - 8}{5x - 2} = 25x^2 + 10x +4$

Step-by-step explanation:

Given

$Dividend = 125x^3 - 8$

$Divisor = 5x - 2$

Required

Determine the quotient

See attachment for complete process.

First, divide 125x^3 by 5x

$\frac{125x^3}{5x} =25x^2$

Write $25x^2$ at the top

Multiply $5x - 2$ by $25x^2$

$= 125x^3 - 50x^2$

Subtract from 125x^3 - 8

i.e.

$125x^3 - 8 - (125x^3 - 50x^2) = 50x^2 - 8$

Step 2:

Divide 50x^2 by 5x

$\frac{50x^2}{5x} = 10x$

Write $10x$ at the top

Multiply $5x - 2$ by $10x$

$= 50x^2 - 20x$

Subtract from 50x^2 - 8

i.e.

$50x^2 - 8 - (50x^2 - 20x) = 20x - 8$

Step 3:

Divide 20x by 5x

$\frac{20x}{5x} = 4$

Write $4$ at the top

Multiply $5x - 2$ by $4$

$= 20x - 8$

Subtract from 20x - 8

i.e.

$20x - 8 - (20x - 8) = 0$

Hence:

$\frac{125x^3 - 8}{5x - 2} = 25x^2 + 10x +4$

8 0

3 years ago

2x≥12 <br>I can't figure this out

Serhud [2]

Answer:

$x \geq 6$

Step-by-step explanation:

You can start by dividing both sides by 2, getting $x \geq 6$ .

7 0

2 years ago

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Juli2301 [7.4K]

Answer:

5 8/15 I rly hope this helps man

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2 years ago

What is the slope of the equation y= 5/4 times -7/4

gulaghasi [49]

Answer:

5/4

Step-by-step explanation:

If the equation is

$y = \dfrac{5}{4}x - \dfrac{7}{4}$

then the slope is the number multiplying x, so

slope = 5/4.

5 0

3 years ago

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