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
Degger [83]
3 years ago
11

Question: 23 of 60

Mathematics
1 answer:
Ronch [10]3 years ago
3 0
The correct answer is 40 which will be letter c
You might be interested in
Can someone plz help me with this!
asambeis [7]

Answer:

(arranged from top to bottom)

System #3, where x=6

System #1, where x=4

System #7, where x=3

System #5, where x=2

System #2, where x=1

Step-by-step explanation:

System #1: x=4

2x+y=10\\x-3y=-2

To solve, start by isolating your first equation for y.

2x+y=10\\y=-2x+10

Now, plug this value of y into your second equation.

x-3(-2x+10)=-2\\x+6x-30=-2\\7x=28\\x=4

System #2: x=1

x+2y=5\\2x+y=4

Isolate your second equation for y.

2x+y=4\\y=-2x+4

Plug this value of y into your first equation.

x+2(-2x+4)=5\\x+(-4x)+8=5\\x-4x+8=5\\-3x=-3\\x=1

System #3: x=6

5x+y=33\\x=18-4y

Isolate your first equation for y.

5x+y=33\\y=-5x+33

Plug this value of y into your second equation.

x=18-4(-5x+33)\\x=18+20x-132\\-19x=-114\\x=6

System #4: all real numbers (not included in your diagram)

y=13-2x\\8x+4y=52

Plug your value of y into your second equation.

8x+4(13-2x)=52\\8x+52-8x=52\\0=0

<em>all real numbers are solutions</em>

System #5: x=2

x+3y=5\\6x-y=11

Isolate your second equation for y.

6x-y=11\\-y=-6x+11\\y=6x-11

Plug in your value of y to your first equation.

x+3(6x-11)=5\\x+18x-33=5\\19x=38\\x=2

System #6: no solution (not included in your diagram)

2x+y=10\\-6x-3y=-2

Isolate your first equation for y.

2x+y=10\\y=-2x+10

Plug your value of y into your second equation.

-6x-3(-2x+10)=-2\\-6x+6x-30=-2\\-30=-2

<em>no solution</em>

System #7: x=3

y=10+x\\2x+3y=45

Plug your value of y into your second equation.

2x+3(10+x)=45\\2x+30+3x=45\\5x=15\\x=3

3 0
3 years ago
Solve for a<br> 8 + 4a = 3a
Vilka [71]

Answer:-8

Step-by-step explanation:

8+4a=3a

8=3a-4a

8=-a

a=-8

5 0
3 years ago
The sphere weighs 4 pounds. sorry no picture but you can ask me for it in the comments What is the weight of the cylinder? What
Zolol [24]

Answer:

The weight is 4 pounds :D

Step-by-step explanation:

3 0
3 years ago
I will give brainliest!!!! Which expressions are equivalent to x+x+x+2? Choose 2 answers: A 3x + 2 (Choice B) B 3 + 2x (Choice C
____ [38]

Answer:

the answer is a and d ! hope it help

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What digits can be in the ones place of a number that has 5 as a factor?
Sophie [7]
The digits that can be in the ones place is 1 and 5.... I think.
3 0
3 years ago
Other questions:
  • How to solve this problem?
    11·1 answer
  • if the length of a rectangle is 2km less then 3times the width and the perimeter is 68 what is the length
    6·1 answer
  • What is 5/18 in simplest form
    5·1 answer
  • AWARDING BRAINLIEST!!! Five classmates came to Dan’s birthday party. This is half as many as the number of his summer camp frien
    7·2 answers
  • How many times does 50 go into 2490
    10·2 answers
  • Given circle Q with a measure of SR=120° and a radius of 9 feet, as shown below.
    11·1 answer
  • A turkey costs $1.05 per pound. There are going to be fifteen people at Thanksgiving dinner. Plan for each person to eat two, 3/
    11·1 answer
  • Question 5<br> Solve 8x + 6 = 42
    13·2 answers
  • X/5=y/3 and 12/y=4/5 <br> What is x and what is y?
    5·1 answer
  • Find the solutions of the system y = –2x – 1 and y = 3–x–1.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!