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
Delvig [45]
4 years ago
7

2x + 3y = 15.5 x + y = 6

Mathematics
2 answers:
liubo4ka [24]4 years ago
8 0

Step-by-step explanation:

2x+3y=15.5 --- ①

x+y=6 --- ②

y=6-x --- ③

substitute ③ into ①

2x+3(6-x)=15.5

2x+18-3x=15.5

-x+18=15.5

18-15.5=x

x=2.5

y=6-x

y=6-2.5

y=3.5

hope this helps

WARRIOR [948]4 years ago
6 0

Answer:

X= 2.5 Y= 3.5

Step-by-step explanation:

2X+3Y =15.5

replace either x or y with your second equation

(2*(6-y))+3y=15.5

now you only have one variable

12-2y+3y=15.5

y=3.5

now insert your y value into the second equation provided

x+y=6

x+3.5=6

so x= 2.5

you can check your answer by inserting these numbers into the equations and it should work

You might be interested in
If you could please help ASAP it would be greatly appreciated!
klemol [59]

Answer:

A. 20

Step-by-step explanation:

because she has twice as many and if you have twice as many then you'll have 40 so 40+20=60

5 0
3 years ago
Read 2 more answers
Y hat = -29.8 +2.83 <br><br>Please help me find the interpret slope!
KatRina [158]

Answer:

The answer is 32.63

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I need help please?!!!
dedylja [7]
60% if there are only 10 white and black balls
3 0
3 years ago
Read 2 more answers
6 &gt;2 k + 4 what does k equal
USPshnik [31]

Answer:

k = anything that is less than 2, so 1, 0, -1, -2, -3, -3 1/4, etc.

Hope that helps!

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Can some one please help . Thanks I appreciate it.
Anon25 [30]
Here you go.

Good luck!

5 0
4 years ago
Other questions:
  • A stock investment went up $25\%$ in 2006. Starting at this increased value, what percent would it have to go down in 2007 to be
    11·1 answer
  • Which inequality matches the graph?
    7·2 answers
  • Two mechanics worked on a car. The first mechanic worked for 15
    15·1 answer
  • Do I just fill this in myself w my own info???
    15·1 answer
  • What is the least common multiple of 420 and 1848?
    7·1 answer
  • Please help me out!!!!!
    13·1 answer
  • What is the slope of every line perpendicular to (0,1) and (2,-4)
    6·1 answer
  • What is the solution of the system? 5x + 2y = 9 4x - 3y = 44
    15·1 answer
  • Help!! Picture added:
    10·1 answer
  • Quick please I need this before I go
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!