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4 years ago

I will ive brainliest answer

Mathematics

2 answers:

yarga [219]4 years ago

8 0

The red line is y=1/2x -4 while the blue one is y=-2x+1. It's the last statement

iogann1982 [59]4 years ago

8 0

For this case what you should do is see the point of intersection of both graphics.

The point of intersection represents the solution of the system of equations.

We have then that the solution is given by:

$(x, y) = (2, -3)$

We have then that the system of equations is:

$(1/2) x-4 = -2x + 1$

Substituting the value of x = 2 the result on both sides of the equation must be -3.

We have then:

$(1/2) (2) -4 = -2 (2) +1\\1-4 = -4 + 1\\-3 = -3$

Abswer:

$(1/2) x-4 = -2x + 1$

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2(x+4)=30 what is the answer

Talja [164]

<span>2(x+4)=30
divide both sides by 2
x + 4 = 15
subtract 4 to both sides
x = 11</span>

3 0

3 years ago

Read 2 more answers

LOOK AT CHART BEFORE THE BULLET PART:

Ber [7]

Answer:

1st blank: $\text{Slope(m)}=-\frac{3}{4}$

2nd blank: $\text{y-intercept}=399$

3rd blank: Slope-intercept form: $y=-\frac{3}{4}x+399$

Step-by-step explanation:

Let x be the number of sandwiches and y be the number of wraps.

We have been given a chart of values, which represents Sal's total profit on lunch specials for two months. We are asked to fill in the empty boxes.

We have been given that Sal gets a profit of $3 after selling each sandwich, so Sal's profit after selling x sandwiches will be 3x.

As each wrap gives a profit of $4, So Sal's profit after selling y wraps will 4y.

Since Sal’s total profit on lunch specials for next month is $1596. We can represent this information in an equation as:

$3x+4y=1596$

We can see that our equation is in standard form, so let us convert it in slope-intercept form of equation.

Since we know that equation of a line in slope-intercept form is: $y=mx+b$ , where,

m = Slope of line,

b = y-intercept or initial value.

Let us subtract 3x from both sides of our equation.

$3x-3x+4y=1596-3x$

$4y=1596-3x$

Let us divide both sides of our equation by 4.

$\frac{4y}{4}=\frac{1596-3x}{4}$

$y=\frac{1596}{4}-\fraxc{3x}{4}$

$y=399-\frac{3}{4}x$

$y=-\frac{3}{4}x+399$

Therefore, equation $y=-\frac{3}{4}x+399$ represents the Sal's total profit for 2nd month in slope-intercept form of equation.

Upon comparing our equation with slope-intercept form of equation we can see that slope of our line is $-\frac{3}{4}$ and y-intercept is 399.

5 0

3 years ago

How to balance H2 + O2

ohaa [14]

Answer:

Hey mate hope its help you......

7 0

3 years ago

What is 3/b=5/20 b=?

MArishka [77]

Answer:

b= 12

Step-by-step explanation:

3/b = 5/20

3/b = 1/4

b= 12

8 0

3 years ago

If a polygon has 1127 diagonals, how many sides does the polygon have? (what’s the equation to solve or & answer)

Vlada [557]

We are given : Number of diagonals of a polygon = 1127 diagonals.

We know relation between number of diagonals and number of sides of the polygon.

<h3> $\frac{n(n-3)}{2}=d$ , Where n is the number of sides of the polygon and d is number of diagonals.</h3>

Plugging d=1127 in above formula, we get

$\frac{n(n-3)}{2}=1127$

Multiplying both sides by 2, we get

$n(n-3)=2254$

$n^2-3n=2254$

$n^2-3n-2254=0$

Solving quadratic equation by factoring, we get factors

$\left(n-49\right)\left(n+46\right)=0$

Solving for n, we get

n-49=0

n=49.

n+46=0.

n=-46.

We can't take number of sides by a negative number.

Therefore, number of sides does the polygon have 49 side.

3 0

3 years ago