All categories

3 years ago

5. y = 2x + 6 2x - y=2

Mathematics

1 answer:

Crank3 years ago

5 0

Step-by-step explanation:

$y = 2x + 6$

$2x - y = 2$

To solve this system of equations, let's first add the equations together:

$(y) + (2x - y) = (2x + 6) + (2)$

$2x = 2x + 8$

$2x - 2x = 8$

$0 = 8$

There are no values of $x$ that will make this equation true, so the lines never intersect, and therefore there are no solutions to this system of equations.

You might be interested in

If 2×2=4 and 4×4=8. What is 8×8?

Oxana [17]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Investors buy a studio apartment for $180,000. Of this amount, they have a down payment of $36,000. Their down payment is what

mina [271]

Answer:

Answer: 36,000 would be 20 percent. 72,000 would be 40 percent. Step-by-step explanation: You just divide 36,000 by 180,000

5 0

2 years ago

2/3 (x - 7 ) = -2<br> AL y = 5/3 B: 8 1/3 C: 10 D: 4

nika2105 [10]

Answer:

D: 4

Step-by-step explanation:

1. Solve the equation

$\begin{array}{rcl}\dfrac{2}{3}(x - 7) & = & -2\\\\2(x - 7) & = & -6\\x - 7 & = & -3\\x & = & \mathbf{4}\\\end{array}$

2. Check

$\begin{array}{rcl}\dfrac{2}{3}(4 - 7) & = & -2\\\\\dfrac{2}{3}(-3) & = & -2\\\\-2 & = & -2\\\end{array}$

8 0

2 years ago

The organizers of a walkathon get cost estimates from two printing companies to print brochures to advertise the event. The cost

PilotLPTM [1.2K]

15 + 0.10n = 0.25n
15 = 0.25n - 0.10n
15 = 0.15n
15 / 0.15 = n
100 = n....they are the same at 100 brochures

7 0

3 years ago

Jerry drew a line on the coordinate plane that passed through the points (-4,8) and (6,13). Which equation represents the line t

Sholpan [36]

(-4,8)(6,13)
slope(m) = (13 - 8) / (6 - (-4) = 5 / (6 + 4) = 5/10 = 1/2

y = mx + b
slope(m) = 1/2
use either of ur points (6,13)...x = 6 and y = 13
now sub and find b, the y int
13 = 1/2(6) + b
13 = 3 + b
13 - 3 = b
10 = b

so ur equation is : y = 1/2x + 10 (slope intercept form)

or..
y = 1/2x + 10
-1/2x + y = 10...multiply by -2
x - 2y = -20 (standard form)

7 0

3 years ago