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
Tresset [83]
3 years ago
8

PLEASE HELP-20 POINTS

Mathematics
1 answer:
avanturin [10]3 years ago
4 0
1.) m + n = 5
m - 3 = n

m + m - 3 = 5
2m - 3 = 5
2m = 8
m = 4

m + n = 5
4 + n = 5
n = 1

Therefore m =4 and n =1

2.) I don't think this one can be done because:
6x - 2(3x - 7) = 12
6x - 6x + 14 = 12
0x + 14 = 12
0x = - 2

3.) 5x + 2(x + 7) = 7
5x + 2x + 14 = 7
7x + 14 = 7
7x = - 7
x = - 1

y = x + 7
y = - 1 +7
y = 6

Therefore x = - 1 and y = 6

4.) I don't think this one can be done either because:
14 - 4x = 2y
Is the same as:
7 - 2x = y
Which is the same as the first equation. You then get 0x because if you substitute y in:
7 - 2x + 2x =7
7 = 7

5.) y = 4x + 6
5x - 4x + 6 = 6
x +6 = 6
x = 0

y = 4x + 6
y = (4x0) + 6
y = 6

Therefore x = 0 and y = 6
You might be interested in
Margarita traces a circle with a radius of 20 centimeters like the one shown below. She will color in the shaded region. What is
lana66690 [7]

Answer:

314 cm ^ 2

Step-by-step explanation:

First do, 3.14 x 20 ^ 2

3.14 x 20 ^ 2 = 1,256

Then do, 1,256/4

1,256/4 = 314

Why 4?

This part of the circle is 1/4 of the entire circle.

What does ^ mean?

It's just a way to say to the power of on a computer.

Hope this helps! :)

7 0
3 years ago
I dont understand how to do this please help me i want to get a good grade​
horsena [70]

Answer:

y =20

Step-by-step explanation:

you have to get the y by itself so what you do on one side you do to the other. subtract 12 on both sides and you get y=20

7 0
3 years ago
Read 2 more answers
Helppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Lynna [10]

Answer:

Jacob served 16 quarts of juice.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Heyy! i’ll give brainliest please help
ipn [44]

Answer:

Step-by-step explanation:

Always capitalize the names of the seasons

3 0
3 years ago
Read 2 more answers
GARDENING Jane needs to buy mulch
PSYCHO15rus [73]

Answer:

I suggest you use Socratic, it solves questions like this.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A scuba diver is 12 meters below sea level. If the diver descends 39 meters further, what integer represents the scuba diver’s n
    15·1 answer
  • If f(x) = 3x, what is f(4)?
    5·1 answer
  • Please help ! Will mark brainliest!
    15·1 answer
  • The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −7 0 −1 1 5 g(x) g(x) =
    5·1 answer
  • Given the legs of a right triangle are a = 21, b = 28, what is the length of the hypotenuse?
    14·1 answer
  • The altitude of a triangle is increasing at a rate of 3 3 centimeters/minute while the area of the triangle is increasing at a r
    10·1 answer
  • A certain truck weighs 2 metric tons. A person weighing 60 kilograms gets in the truck, followed by a 70 kilogram person. How ma
    13·1 answer
  • Algebra help needed
    6·1 answer
  • Please help with this question its in the picture
    5·1 answer
  • Convert radical to exponential<br> 6√(10x)^7<br> ∛43<br> √(5x)^5
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!