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andrew-mc [135]
2 years ago
9

What is the solution of the system? Use any method. 3x + 2y = 7 y = –3x + 11

Mathematics
1 answer:
Gnom [1K]2 years ago
6 0

Answer:

(5,-4)

Step-by-step explanation:

SOLVE BY SUBSTITUTION:

STEP 1: Replace all occurrences of y with -3x+11 in each equation.

-3x+22=7\\y=-3x+11

STEP 2: Solve for x in the first equation.

x=5\\y=-3x+11

STEP 3: Replace all occurrences of x with 5 in each equation.

y=-4\\x=5

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Solve for x. will give brailiest<br><br> 2x + 5 = 27<br><br> 8.5<br><br> 11<br><br> 16<br><br> 64
Rama09 [41]
<span>2x + 5 = 27
subtract 5 to both sides
2x + 5 - 5 = 27 - 5
simplify
2x = 22
divide both sides by 2
2x/2 = 22/2
simplify
x = 11

answer is </span><span>11 (second choice)
</span>
hope that  helps
4 0
3 years ago
The graph below shows a proportional relationship between x and y.
Bas_tet [7]

Answer:

  • 3.5

Step-by-step explanation:

Use point (1, 3.5) on the graph

x = 1, y = 3.5

  • y/x =
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k = 3.5

7 0
2 years ago
Read 2 more answers
The sum of three consecutive integers is 267. What is the largest integer?
vazorg [7]

Answer:

<h3>                90</h3>

Step-by-step explanation:

The middle number of three consecutive integers is thhe mean of the others, so it is one third of the sum of three consecutive integers

267:3 = <u>89 </u>  - the middle number

so:

89 - 1 = 88   -  the smallest number

89 + 1 =<u> 90</u> - the largest integer

3 0
3 years ago
PLEASE HELP THE QUESTION IS BELOW!!
irina [24]

Answer:

Step-by-step explanation:

B=3x-2

C=12x+2

D=B=3x-2 (Vertically opposite angles)

A=?

Now; we know, A+B+C+D=360 deg.

=>A=360-(B+C+D)

  =360-(3x-2+12x+2+3x-2)

  =360-(18x-2) ----[1]

B+C=180 deg. (linear pair)

=> 3x-2+12x+2=180

=> 15x=180

=> x=180/15

   =12 ---[2]

subsitute [2] in [1];

=> A= 360-(18x-2)

   = 360-(18*12-2)

   = 360-(116-2)

   = 360-214

   = 146 deg.

   

So, the correct answer is (D).

Hope the answer is useful.  

8 0
3 years ago
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The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec
tangare [24]
The answer is B: 6 cm. You can use guess-and-check method, and plug the possible different answers into the equation x(x+6)=72, x stands for the width.
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