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3 years ago

How much money do you save when you buy a $40 video game that is on sale for 25% off?

2 answers:

7 0

I’m not the best with percentages but I’m pretty sure it would be
$10
25% = 1 over 4= divided by 4
40 divided by 4 is 10
Sorry if it’s wrong I’m not very good at percentages lol

nexus9112 [7]3 years ago

4 0

I it is think it’s $10

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Which points could be on the line that is parallel to and passes through point J? Check all that apply.

Mandarinka [93]

Here we're finding the equation of a 'new' line which passes thru (1,3) and is parallel to the orange line. We need the slope of the orange line, which will also be the slope of the new line thru J.
-2 - 1 -3
m = --------- = ------ = -1/2
2-(-4) 6

Then the equation of the new line, in point-slope form, is

y - 3 = (-1/2)(x - 1).

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3 years ago

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Simplify <br> 2a²b x 3a³b

katen-ka-za [31]

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4 years ago

Write an equation in slope-intercept form of the line perpendicular to y = - 1 5 x + 1 4 that passes through the point (3, 4).

krok68 [10]

The equation of the line is $y=\frac{1}{15} x+\frac{19}{5}$

Explanation:

The equation is $y=-15x+14$ and passes through the point (3,4)

To find the equation of the line in slope intercept form, first we shall find the slope.

This equation is of the slope-intercept form $y=m x+b$ , we shall find the value of slope.

Thus, slope m = -15

Since, the line is perpendicular, the negative slope is given by $\frac{-1}{m}$

Thus, the new slope is $m=\frac{1}{15}$

Now, we shall find the equation of the line perpendicular to the slope $\frac{1}{15}$ is

$y-y_{1}=\frac{1}{15} \left(x-x_{1}\right)$

Let us substitute the points (3,4), we have,

$y-4=\frac{1}{15} \left(x-3\right)$

Muliplying the term within the bracket, we get,

$y-4=\frac{1}{15}x-\frac{1}{5}$

Adding both sides of the equation by 4, we get,

$y=\frac{1}{15}x-\frac{1}{5}+4$

Adding the like terms, we have,

$y=\frac{1}{15} x+\frac{19}{5}$

Thus, the equation in slope intercept form of the line is $y=\frac{1}{15} x+\frac{19}{5}$

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3 years ago

What are the foci of the graph y2 – 25x2 = 25?

Alborosie

Answer: $\bold{(0,-\sqrt{26})\quad \&\quad (0,\sqrt{26})}$

<u>Step-by-step explanation:</u>

$.\qquad y^2-25x^2=25\\\\\implies \dfrac{y^2}{25}-\dfrac{25x^2}{25}=\dfrac{25}{25}\\\\\\\implies \dfrac{y^2}{25}-\dfrac{x^2}{1}=1\\\\\\Center: (0, 0)\\Length\ of\ foci:25+1=c^2\implies \sqrt{26}=c\\Foci: (0,0\pm \sqrt{26})$

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3 years ago

Sally wants to purchase some snowboarding equipment, clothes, and a season pass. She calculates that it will cost her about $1,8

mixer [17]

Lol I just answered the same question minutes ago. Here is the answer I gave him/her.

Total Cost : 1800

12 dollars * 16 hours = 192 dollars earned

0.2 percent * 192 = 38.4 dollars saved

A.She earns 192 dollars every week

B. she will save 38.4 dollars * 7 weeks = 268.8 dollars in a week.

C. 7 days times 4.3 weeks = 30.1 days. 30.1 days * 38.4 = 1,155.84 dollars every month.

D. it will take her about 2 months to save the money. To be exact: 1.6 months.

Hope this helped!

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3 years ago