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lianna [129]
3 years ago
12

Plsss help I don't know how to graph I will give brainiest!

Mathematics
1 answer:
Anastasy [175]3 years ago
4 0

Answer: (2, 5)

Step-by-step explanation:

y = 2x + 1 y = 4x − 3

Eliminate the equal sides of each equation and combine.

2x + 1 = 4x − 3

Solve 2x + 1 = 4x − 3 for x.

Move all terms containing x to the left side of the equation.

Subtract 4x from both sides of the equation.

2x + 1 − 4x = −3

Subtract 4x from 2x.

−2x + 1 = −3

Move all terms not containing x to the right side of the equation.

Subtract 1 from both sides of the equation.

−2x = −3 − 1

Subtract 1 from −3.

−2x = −4

Divide each term by −2 and simplify.

x = 2

Evaluate y when x = 2.

Substitute 2 for x. y = 4 (2) − 3

Simplify 4 (2) − 3.

Multiply 4 by 2.

y = 8 − 3

Subtract 3 from 8.

y = 5

The solution to the system is the complete set of ordered pairs that are valid solutions.

(2, 5)

The result can be shown in multiple forms.

Point Form:

(2, 5)

Equation Form:

x = 2, y = 5

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Select the property of equality used to arrive at the conclusion.
Andre45 [30]
It is the division property of equality. You divide by 5 each side of the equation to isolate x.
3 0
3 years ago
an empty 1200 gallon tank is filled with water at a rate of 6 gallons of water per minute. At the same time another 1200 gallon
ser-zykov [4K]

Answer: 80 minutes

Step-by-step explanation:

Hi, to answer this question we have to write an equation for each tank:

An empty 1200 gallon tank is filled with water at a rate of 6 gallons of water per minute.  

So, the amount of water of the tank is equal to the filling rate, 6 liters per minute (6m)

  • Tank 1 =0 (empty )+ 6m  =6m

The second 1200 gallon tank full of water is being drained at a rate of 9 gallons per minute.

  • Tank 2 = 1200-9m

So, the amount of water in the tank is equal to the amount of water already in the tank (1200 g), minus the draining rate (9m)

Since both tanks will have the same amount of water:

6m = 1200-9m

Solving for m  (minutes):

6m+9m= 1200

15m = 1200

m= 1200/15

m= 80 minutes

Feel free to ask for more if needed or if you did not understand something.

4 0
3 years ago
PLEASE HELP!! What is it? Disagree or agreee
Studentka2010 [4]

Answer:

i would disagree

3 0
3 years ago
Read 2 more answers
In /\UVW, VW ~= UV and m
goblinko [34]
I’m so sorry but I do not understand the question-could u explain
4 0
3 years ago
Solve using elimination method <br><br>-3x + 5y = 8 <br>-2x + 7 y = -2​
Slav-nsk [51]
  • Answer:

<em>x = - 6</em>

<em>y = - 2</em>

  • Step-by-step explanation:

<em>-3x + 5y = 8  | ×(-2)</em>

<em>-2x + 7 y = -2​ | ×3</em>

<em />

<em>6x - 10y = - 16</em>

<em>- 6x + 21y = - 6</em>

<em>add</em>

<em>6x - 6x - 10y + 21y = - 16 - 6</em>

<em>11y = - 22</em>

<em>y = - 22 : 11</em>

<em>y = - 2</em>

<em>replace y</em>

<em>- 2x + 7(-2) = - 2</em>

<em>- 2x - 14 = - 2</em>

<em>- 14 + 2 = 2x</em>

<em>2x = - 12</em>

<em>x = - 12 : 2</em>

<em>x = - 6</em>

6 0
4 years ago
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