Ask question

Ask question

All categories

3 years ago

6

A car costs £15000. Work out the price after a 13% discount. PLEASE HELP ASAP...

1 answer:

Bezzdna [24]3 years ago

6 0

The answer would be 130.5

You might be interested in

This is less than and more than questions

valentinak56 [21]

Hmm... interesting thought.

6 0

4 years ago

Solve the following linear quadratic system of equations algebraically.<br><br> y=^2+3x-2<br> y+3=5x

USPshnik [31]

Answer:

$x=1$

$y=2$

Step-by-step explanation:

$y=x^2+3x-2$ , $y+3=5x$

Replace all occurrences of $y$ in $y+3=5x$ with $x^2+3x-2.$

$(x^2+3x-2)+3=5x$

$y=x^2+3x-2$

Add $-2$ and 3.

$x^2+3x+1=5x$

$y=x^2+3x-2$

Subtract 5x from both sides of the <u>equation.</u>

$x^2+3x+1-5x=0$

$y=x^2+3x-2$

Subtract 5x from 3x.

$x^2-2x+1=0$

$y=x^2+3x-2$

Rewrite 1 as $1^2$ .

$x^2-2x+1^2=0$

$y=x^2+3x-2$

Check that the middle <u>term</u> is two times the <u>product</u> of the numbers being squared in the first <u>term</u> and third <u>term</u>.

$2x=2$ · $x$ · $1$

$y=x^2+3x-2$

Rewrite the <u>polynomial</u>.

$x^2-2$ · $x$ · $1$ $+$ $1^2=0$

$y=x^2+3x-2$

Factor using the <u>perfect square</u>

<u>trinomial</u> rule $a^2-2ab+b^2=(a-b)^2,$

where a = x and b = 1.

$(x-1)^2=0$

$y=x^2+3x-2$

<u>Set</u> the $x-1$ equal to 0.

$x-1=0$

$y=x^2+3x-2$

Add 1 to both sides of the <u>equation</u>.

$x=1$

$y=x^2+3x-2$

Replace all occurrences of $x$ in

$y=x^2+3x-2$ with 1.

$y=(1)^2+3(1)-2$

$x=1$

$y=2$

3 0

3 years ago

On a coordinate plane, a line has points (negative 2, negative 4) and (4, 2). Point P is at (0, 4). Which points lie on the line

NikAS [45]

Answer:

the correct options are:

(–1, 3), (–2, 2) and (–5, –1)

Step-by-step explanation:

Given that a line passes through two points

A(-2, -4) and B(4, 2)

Another point P(0, 4)

To find:

Which points lie on the line that passes through P and is parallel to line AB ?

Solution:

First of all, let us the find the equation of the line which is parallel to AB and passes through point P.

Parallel lines have the same slope.

Slope of a line is given as:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$m=\dfrac{2-(-4)}{4-(-2)} = 1$

Now, using slope intercept form ( $y = mx+c$ ) of a line, we can write the equation of line parallel to AB:

$y =(1)x+c \Rightarrow y = x+c$

Now, putting the point P(0,4) to find c:

$4 = 0 +c \Rightarrow c = 4$

So, the equation is $\bold{y=x+4}$

So, the coordinates given in the options which have value of y coordinate equal to 4 greater than x coordinate will be true.

So, the correct options are:

(–1, 3), (–2, 2) and (–5, –1)

8 0

3 years ago

Read 2 more answers

Mellie bought a 120$ fishing rod for 15% off. How much did she pay after a 7% tax was added to the rod?

Sever21 [200]

Answer:

The answer is 109.14

Step-by-step explanation:

You have to take away 15% from 120$ which gives you 102$. Then you add 7% and that gives you 109.14

8 0

3 years ago

Maria wrote the equation of a line that has a slope of 4/3

ExtremeBDS [4]

Answer:

The equation of the line is y=4/3x+1

Step-by-step explanation:

I don't know the statement.

6 0

3 years ago

Read 2 more answers