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2 years ago

A jar of natural peanut butter normally costs $4.00. Today its on sale for $3.60. What is the percent of the discount?

Mathematics

2 answers:

Alika [10]2 years ago

4 0

I thought it would be 10 percent but my cal. says 1.44

valentinak56 [21]2 years ago

3 0

It is 14.4 percent you have to multiply 3.60 times the original to find percentage

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What are the slope and y intercept of the line described by the equation y=-4/5x -10

rodikova [14]

The slope is $-\frac{4}{5}$ and y-intercept is -10

Step-by-step explanation:

Given equation is:

$y = -\frac{4}{5}x-10$

The given equation is in slope-intercept form

General form of slope-intercept form of equation of line is:

$y = mx+b$

Here

m is the slope

b is the y-intercept

So,

comparing both equation we get

The coefficients of x

$m = -\frac{4}{5}$

And

$b = -10$

Hence,

The slope is $-\frac{4}{5}$ and y-intercept is -10

Keywords: Slope, equation of line

Learn more about equation of line at:

#LearnwithBrainly

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ratelena [41]

Answer:

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Step-by-step explanation:

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2 years ago

Find the equation of a line that passes through (0,0) that is perpendicular to 2x+3y=-6

Dovator [93]

The slope-intercept form of a line:

$y=mx+b$

m - slope

b - y-intercept

Convert 2x + 3y = -6 to the slope-intercet form:

$2x+3y=-6$ <em>subtract 2x from both sides</em>

$3y=-2x-6$ <em>divide both sides by 3</em>

$y=-\dfrac{2}{3}x-2$

Let $k:y=m_1x+b_1$ and $l:y=m_2x+b_2$

$l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}$

We have $m_1=-\dfrac{2}{3}$

Therefore

$m_2=-\dfrac{1}{-\frac{2}{3}}=\dfrac{3}{2}$

We have the equation of a line:

$y=\dfrac{3}{2}x+b$

Put the coordinates of the point (0, 0) to the equation:

$0=\dfrac{3}{2}(0)+b$

$0=b\to b=0$

Answer: $\boxed{y=\dfrac{3}{2}x}$

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2 years ago

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Veseljchak [2.6K]

Answer:

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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