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1 year ago

The price of a laptop was marked 80 percent off because it had a cracked screen.

Mathematics

3 answers:

Lelu [443]1 year ago

7 0

Answer:

20%

Step-by-step explanation:

just took test plz mark as brainliest

Finger [1]1 year ago

4 0

Answer:yes its 20%

Step-by-step explanation:i did the test and the other guy was right!tysm

Guest1 year ago

0 0

The price of a laptop was marked 80 percent off because it had a cracked screen.

Percents
Total
80%
20%
100%
x

$150

If this resulted in a savings of $600, what is the value of x in the table above?
15 %
20 %
25 %
40 %

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The density of an object can be found by taking its mass and dividing by its volume. Write an equation to represent the relation

prisoha [69]

Answer:

Step-by-step explanation:

The density of an object can be found by taking its mass and dividing by its volume.

Hence if density is D , Mass is M and Volume is V

$D=\frac{M}{V}$

M = 500 gms

V = 40 cubic cm

$D=\frac{500}{40}$

$D=12.5$

M = 125 gms

V = 1.4 cubic cm

$D=\frac{125}{1.4}$

$D=89.28$

D =89.28 gm per cc

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1 year ago

What is the y-intercept of the function,represented by the table of values below?

Hitman42 [59]

Answer:

Step-by-step explanation:

So the y-intercept is not given by your table because there is no x that is listed as 0.

But don't fret; we can still find it.

Let's see if the function is linear by seeing if we have the same slope per two points in the table.

For the first pair ( the points (-2,16) and (1,4) ), x increased by 3 and the y decreased by 12 so the slope there is -12/3=-4.

Now looking at the next pair ( the points (1,4) and (2,0) ), x increased by 1 while y decreased by 4 so the slope is -4/1=-4.

So the function appears to be linear.

So the slope-intercept form of a line is y=mx+b where m is slope and b is y-intercept.

We already found the slope from earlier which is m=-4.

So the equation so far is y=-4x+b.

Now to find b, the y-intercept, we need to use a point (x,y) on the line along with y=-4x+b.

Let's see my favorite on the list of points is (2,0).

y=-4x+b with (x,y)=(2,0)

0=-4(2)+b

0=-8+b

8=b

So the y-intercept is 8.

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2 years ago

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barxatty [35]

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2 years ago

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HELP! 50 POINTS!

Alexxandr [17]

(4, -1) ---> x = 4 and y = -1

If you look at the graph you can se this

Mark points (0, 2) and (8, -4) in the coordinate plane

Plot the line going through both of these points.

Read the coordinates of the intersection of the line so you can see the solution!

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1 year ago

The factorization of x2 + 3x – 4 is modeled with algebra tiles. An algebra tile configuration. 2 tiles are in the Factor 1 spot:

arsen [322]

Answer:

The factors of x^2+3x-4 are (x-1)(x+4) ....

Step-by-step explanation:

We have to find the factors of x^2+3x-4

As we know that this is a quadratic equation.

So we have to find the roots first.

The roots are -1 and 4.

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(x^2+4x)-(x+4)

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2 years ago

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