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3 years ago

Solve this literal equation 2a-b=8b-4a

Mathematics

1 answer:

Alex Ar [27]3 years ago

3 0

Answer:a= 3b/2 b =2a/3

Step-by-step explanation:

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vaieri [72.5K]

Answer:

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Step-by-step explanation:

the answer is m=1/4

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3 years ago

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What’s the area of the figure?

Vlada [557]

we can pretty much split the middle part into two trapezoids. Check the picture below.

so we really have one trapezoid and one square, each twice, so simply let's get the area of the trapezoid and sum it up with the area of the square, twice, and that's the area of the shape.

$\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{\textit{parallel sides}}{bases}\\[-0.5em] \hrulefill\\ h=5\\ a=3\\ b=7 \end{cases}\implies A=\cfrac{5(3+7)}{2}\implies A=25 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{sum of areas}}{[25+(3\cdot 3)]}\cdot \stackrel{twice}{2}\implies [34]2\implies \underset{in^2}{68}$

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2 years ago

Hey everyone!!!!!!!!!!!

Ronch [10]

Answer:

P(0, 1)

Step-by-step explanation:

Using the section formula

$x_{P}$ = $\frac{(3(-2))+(2(3))}{2+3}$ = $\frac{-6+6}{5}$ = 0

$y_{P}$ = $\frac{(3(5))+(2(-5))}{2+3}$ = $\frac{15-10}{5}$ = 1

Hence P(0, 1)

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3 years ago

What is the new price of a shirt that is on sale for 25% off and has an original price of $30?

klio [65]

$22.50. change 25% into decimal. 0.25 and multiply the original price by percent in decimal form you will get the amount that is taken off so subtract that from original:)

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4 years ago

A line is perpendicular to y = -1/5x+1

natta225 [31]

Answer:

$y = 5\, x + 26$ .

Step-by-step explanation:

Start by finding the slope of the line perpendicular to $y = (-1/5)\, x + 1$ .

The slope of $y = (-1/5)\, x + 1$ is $(-1/5)$ .

In a plane, if two lines are perpendicular to one another, the product of their slopes would be $(-1)$ .

Let $m$ denote the slope of the line perpendicular to $y = (-1/5)\, x + 1$ . The expression $(-1/5)\, m$ would denote the product of the slopes of these two lines.

Since these two lines are perpendicular to one another, $(-1/5)\, m = -1$ . Solve for $m$ : $m = 5$ .

The $(-5,\, 1)$ is a point on the requested line. (That is, $x_{1} = -5$ and $y_{1} = 1$ .) The slope of that line is found to be $m = 5$ . The equation of that line in the point-slope form would be:

$y - 1 = 5\, (x - (-5))$ .

Rewrite this point-slope form equation into the slope-intercept form:

$y = 5\, x + 26$ .

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3 years ago