What are the solutions to the following system?

iren2701 [21]

Answer:

what are supposed to help u with exactly ...cos u need to extend the scale ...n u have already answered so...

3 0

3 years ago

On a buying trip in los angeles, rosaria perez ordered 120 pieces of jewelry: a number of bracelets at $77 each and a number

Digiron [165]

Let, the number of bracelets be x and the number of necklaces be y.

Given, there are 120 pieces of jewellery which are bracelets and necklaces.

So we can write the equation, $x+y = 120$ ....equation 1

Now given the price of bracelet = $7

So, the price of x bracelets = $ $(7)(x)$ =$ $(7x)$

Given, the price of necklace = $13.

So, the price of y necklaces = $ $(13)(y)$ = $ $(13y)$

The total amount for the jewellery given = $ 1080.

We can write the equation as,

$7x + 13y = 1080$ ....equation 2

Now from equation 1, we can write,

$x = 120-y$

By substituting this value of x in equation 2, we will get,

$7(120-y) + 13y = 1080$

$840-7y+13y = 1080$

$840+6y = 1080$

Now we will move 840 to the right side by subtracting it from both sides. We will get,

$840+6y-840 = 1080-840$

$6y = 1080-840$

$6y = 240$

We can get y by moving 6 to the other side by dividing it to both sides. We will get,

$\frac{(6y)}{6} =\frac{240}{6}$

$y =\frac{240}{6}$

$y = 40$

So we have got the number of necklaces = 40

Now we have, $x = 120-40$

$x = 80$

So, the number of bracelets = 80

We have got the required answer here.

8 0

3 years ago

A number that is a multiple of two or more numbers is a_____________________.

igor_vitrenko [27]

If a number is a multiple of two or more numbers, this means they have that number in common

this makes the answer common multiple

5 0

3 years ago

Read 2 more answers

Write an equation of the line perpendicular to the line 8x+15y=12 and containing the point (11,17) write the answer in standard

jek_recluse [69]

The slope of a line perpendicular to another line has a slope which is the negative reciprocal of that line or:

m1 = -1/m2

First, we convert the given equation into slope-intercept form of a line: y = mx + b

8x + 15y = 12

15y = -8x + 12

y = (-8/15) x + 0.8

m1 = -8 / 15

Therefore the slope of the perpendicular line is:

m2 = 15 / 8

Since the perpendicular line crosses the point (11, 17), therefore using the slope formula:

m = (y2 – y1) / (x2 – x1)

15 / 8 = (y2 – 17) / (x2 – 11)

1.875 (x2 – 11) = y2 – 17

1.875 x2 – 20.625 = y2 – 17

y2 = 1.875 x2 – 3.625

y = (15/8) x – 3.625

multiplying both sides by 8:

8y = 15x – 29

rewriting in standard form:

<span>15x – 8y = 29 (ANSWER)</span>

3 0

3 years ago

Which graph represents the funtion f(x)=3x-2/x-2

ladessa [460]

Answer:

Step-by-step explanation:

Given function is,

f(x) = $\frac{3x-2}{x-2}$

Vertical asymptote of the function,

x = 2

Horizontal asymptote of the function,

y = 3

No oblique asymptotes.

Therefore, graph having vertical and horizontal asymptotes as x = 2 and y = 3 will be the correct graph as attached.

7 0

3 years ago