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
slava [35]
3 years ago
6

I need help I don’t understand and I need to show my work who would help me??

Mathematics
2 answers:
stich3 [128]3 years ago
5 0

Answer: b

Step-by-step explanation:

In the last question, you wrote on a second equation "13x ...." kkk

Let's go:

We have to check each one answer in the following system:

x - 2y = 7

3x + 7y = 8

I can use the substituition method to solve this system...

x = 7 + 2y

3x + 7y = 8

3(7 + 2y) + 7y = 8

21 + 6y + 7y = 8

13y = 8 - 21

13y = -13

y = -1

x = 7 + 2.(-1)

x = 5

Finally, the correct answer is the second one (letter b).

Gre4nikov [31]3 years ago
4 0
The answer is B! I hope this helps. Enjoy the holidays
You might be interested in
Is the following relation a function?<br><br> A. Yes<br> B. No
11Alexandr11 [23.1K]

Answer:

a. yes

Step-by-step explanation:

for every input the should be one and only one output, so this is a function

4 0
2 years ago
I need help on this problem. It is about absolute values, so here is the question:
Rufina [12.5K]
|x-4|=1

|x-4|-1=0 absolute values have 2 equations in them

x+4-1=0, x=3

x-4-1=0, x=5
8 0
3 years ago
Need help ASAP (Geometry)!
Fiesta28 [93]
Area of sector = PI x r^2 x (angle/360)

area = PI x 10^2 * (45/360)

area = PI x 100 * 45/360

Area = 25/2x PI

Area = 25PI/2

 Answer is D

5 0
2 years ago
5.) it costs $12 to attend a golf clinic with a local pro
Volgvan

Answer:

You can buy 6 buckets

Step-by-step explanation:

30=-12+3x

-12.  -12

18=3x

divide by 3

you can buy 6 buckets

6 0
2 years ago
Read 2 more answers
Find 5 rational numbers between 3/5 and 4/5
inna [77]
19/30 20/30 21/30 22/30 23/20
5 0
2 years ago
Read 2 more answers
Other questions:
  • Find the three cube roots of z=−3+3i in trigonometric form. Please show your work :) ill give brainliest
    15·1 answer
  • Can someone help me please for nth term?
    11·1 answer
  • The vertex form of h(x) = x2 – 14x + 6 is h(x) = (x – )2 – .
    8·2 answers
  • What is the word form and the expanded form of 427.968?
    10·1 answer
  • Find the area of the figure
    9·1 answer
  • A + b + c = 180 <br> b = 3a <br> c = 5a<br> Whats B
    14·2 answers
  • PLEASE HURRY THIS TIMED !!!
    6·1 answer
  • Una fabrica necesita saber cual es el material favorito de las mujeres para su ropa. para tal fin realiza una encuesta entre alg
    11·1 answer
  • Y=3/8x describes a proportional relationship between x and y. What is the constant of proportionality?
    11·1 answer
  • Classrooms on one side of the drama building are all numbered with consecutive odd integers. If the first room, the room with th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!