1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ValentinkaMS [17]
3 years ago
13

Solve for the values of x and y: y = 3x - 5 ........(i) and y = -x + 7 ........(ii)

Mathematics
1 answer:
Paraphin [41]3 years ago
6 0

Answer:

x= 3, y= 4

Step-by-step explanation:

y= 3x -5 -----(i)

y= -x +7 -----(ii)

Substitute (i) into (ii):

3x -5= -x +7

3x +x= 7 +5

4x= 12

x= 12 ÷4 <em>(</em><em>÷</em><em>4</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

x= 3

Substitute x= 3 into (ii):

y= -3 +7

y= 4

You might be interested in
a square has a side length of x. A rectangle has a length that is 4 inches longer than the square and a width that is 2 inches s
vodomira [7]

Answer:

Length of the rectangle is = 8 inches.

Step-by-step explanation:

Given :

Area of square = Area of the rectangle

According to the question:

Length of the square be 'x'.

Its area = (Side)*(Side) =x^2   ...equation (i)

Length of the rectangle = (x+4)

Width of the rectangle = (x-2)

Area of the rectangle =Length * Width

⇒(x+4)(x-2)=x^2-2x+4x-8

⇒x^2+2x-8          ...equation  (ii)

Equating both the equation as area of both the figure are equal.

⇒ x^2+2x-8=x^2

⇒ 2x-8=0     ...subtracting x^2 both sides

⇒ 2x=8           ...dividing both sides with 2

⇒ x=\frac{8}{2}=4 inches

Plugging the value of x=4 in the length of the rectangle.

We have,

⇒(x+4)=(4+4)=8

So the length of the rectangle = 8 inches.

4 0
3 years ago
What are all these answers
Xelga [282]
Number is an isosceles triangle number seven is a right angle triangle number 9 I believe is a scalene triangle number 10 is a right angle triangle I also believe 11 is a scalene triangle and I believe number 8 is equilateral triangle
8 0
4 years ago
Lukas graphed the system of equations shown.
vampirchik [111]

The system of equations 2x + 3y = 2 and y = (1/2)x + 3 have solutions at x = -2 and y = 2

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

From the system of equations 2x + 3y = 2 and y = (1/2)x + 3, the graph of the equation shows that the solution is at x = -2 and y = 2

Find out more on equation at: brainly.com/question/2972832

#SPJ1

8 0
2 years ago
Help i’m doing my exam
jolli1 [7]
Dude I don’t think using this for an exam is it but ok
5 0
3 years ago
Read 2 more answers
Expand and simplify 4(x-2)+7(x-1)​
Zolol [24]

Answer:

11x-15

Step-by-step explanation:

4x-8+7x-7

11x-15

5 0
3 years ago
Other questions:
  • Find the area enclosed by the graphs of y=√(4-4x), y=√(4-x) and x-axis by integrating with respect to x and integrating with res
    13·1 answer
  • Q-12=89 what is the value of q
    9·2 answers
  • What is the value of x?
    15·1 answer
  • Is the equation a true statement when x -3 is -3 a solution to the equation 6x + 5=5x + 8 +2x
    10·2 answers
  • A rectangle sand box has a length of 5 1/3 feet and a width of 3 3/4 feet. What is the perimeter?
    10·1 answer
  • How many fluid ounces of vinegar should be mixed with 80 fluid ounces of water
    5·1 answer
  • HELPPPPPPPPPPPP!!!!!!!!!!!
    13·1 answer
  • What type of charge does a proton in an atom hold
    8·1 answer
  • Find the value of x in the proportion. Check your answer.
    11·1 answer
  • Solve the formula for the specified variable. V=XLJ for X
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!