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
OlgaM077 [116]
3 years ago
12

Y = 2x - 8 3x - 2y = 13​

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
8 0

Answer:

{x,y} = {3,-2}

Step-by-step explanation:

// Solve equation [1] for the variable  y

 [1]    y = 2x - 8

// Plug this in for variable  y  in equation [2]

  [2]    3x - 2•(2x-8) = 13

  [2]    -x = -3

// Solve equation [2] for the variable  x

  [2]    x = 3

// By now we know this much :

   x = 3

   y = 2x-8

// Use the  x  value to solve for  y

   y = 2(3)-8 = -2

Solution :

{x,y} = {3,-2}

You might be interested in
What is the solution to the system of equations?
frez [133]
(-19,55) x is equal to -19 and y is equal to 55
4 0
3 years ago
Read 2 more answers
A warehouse is 55 yards long, 35 yards wide, and 5 yards high. What is the area of the warehouse floor? If the warehouse is fill
amid [387]

Answer:

The area of the warehouse floor is 1925yd²

The volume of the boxes is 4812.5yd³

Step-by-step explanation:

First we have to calculate the area, for this we must multiply the length by the width

a = area

l = long = 55yd

w = width = 35yd

a = l * w

a = 55yd * 35yd

a = 1925yd²

to calculate the volume we have to multiply the area by the height

asks us for the volume for half the height so we have to divide the height by 2

a = area = 1925yd²

h = height = 5yd/2 = 2.5yd

v = volume

v = a * h

v = 1925yd² * 2.5yd

v = 4812.5yd³

The area of the warehouse floor is 1925yd²

The volume of the boxes is 4812.5yd³

5 0
3 years ago
Of is directly proportional toy and x = 45 when
kompoz [17]

Answer:

if x=ky, where k is constant.

value of x

45/3=k3/3

15=k, constant is 15

value of x when y =6

x=ky

x=15(6)

x=80

4 0
3 years ago
The figure below shows two pair of congruent triangles. ΔDEF ≅ ______. ΔWXY ΔWYX ΔYWX ΔYXW
Alexandra [31]

Answer:

YXW

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
B. The sum of three numbers is 51. The second number is three more than the first number, and the third number is
Svetach [21]

Answer:

12, 15, 24

Step-by-step explanation:

Let 1st # = x

Let 2nd # = x+3

Let 3rd # = 2x

Your equation is: x + (x+3) + 2x = 51

Add up all the x: x + x +3 +2x =51

Subtract 3 from both sides: 4x + 3 - 3 = 51 - 3

Divide 4 from both sides: 4x / 4 = 48 / 4

Your 1st number is x = 12

For the 2nd # it is 3 more than x so 12 + 3 = 15

For the 3rd # it is 2 times x so 2(12) = 24

Check your answers by adding up the numbers you solved: 12 + 15 +24 = 51

Does it equal to 51 as stated in the question? Yes, answers check out.

7 0
2 years ago
Other questions:
  • Solve for x<br><br> 3(ax + 9) = -4 (-2 - 10x)
    7·1 answer
  • Can the sides of a triangle have lengths 6.2, 0.5, and 7.8?<br> yes or no
    11·1 answer
  • Please explain to me how 3.2÷4=0.8 is done
    15·2 answers
  • mr. Carter math class question know the favorite spectator sport of the students at their High School listed are four examples m
    6·1 answer
  • PLEASE HELP !!! Find the missing side lengths
    6·1 answer
  • The partial pressure of carbon dioxide in a mixture is 0.31 atm.
    7·1 answer
  • Someone help me please!
    11·2 answers
  • How do you subtract 42 minutes from 1 hour 25 minutes? explain what to do and why to do it.
    6·1 answer
  • Find the percent of change. Round to the nearest tenth. $56.00 to $80.00.
    7·1 answer
  • I still need help with similar question
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!