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
Hatshy [7]
3 years ago
6

Use the system of equations to answer the question. 2x + 3y = 8 x-y=5

Mathematics
1 answer:
dsp733 years ago
4 0

Answer:

x = 23/5

y = -2/5

Step-by-step explanation:

We are given two equations

2x + 3y = 8     eq. 1

x - y = 5         eq. 2

From eq. 2

x - y = 5

x = 5 + y       eq. 3

Substitute eq. 3 into eq. 1

2x + 3y = 8     eq. 1

2(5 + y) + 3y = 8

Simplify the equation

10 + 2y + 3y = 8

10 + 5y = 8

5y = 8 - 10

5y = -2

y = -2/5

or

y = -0.4

Substitute the value of y into eq. 3 to get the value of x

x = 5 + y       eq. 3

x = 5 - 2/5

x = 23/5

or

x = 4.6

Therefore, the solution set is

(x, y) = (23/5, -2/5)

This is the point of intersection where these two equations meet.

You might be interested in
Hamal has a new part time job bagging groceries after school. The equation y=10x+50 show the relationship between his hours of w
Firlakuza [10]
Jekfkkskkekrjjflelejrjfnnf
Did firnfjeor f f
8 0
3 years ago
Read 2 more answers
Which set of rational numbers is arranged from least to greatest?
Aleksandr-060686 [28]

Answer:

-0.5, negative 1 over 5, 1 over 9, 1

Step-by-step explanation:

Hope this helps! :) please mark me as brainly :)

3 0
3 years ago
Read 2 more answers
How do you do this?<br> -5x+y=-3<br> 3x-8y=24
Katena32 [7]
-5x+y=-3 \ \ \ |\times 8 \\&#10;3x-8y=24 \\ \\&#10;-40x+8y=-24 \\&#10;\underline{3x-8y=24 \ \ \ \ \ \ \ } \\&#10;-40x+3x=24-24 \\&#10;-37x=0 \ \ \ |\div (-37) \\&#10;x=0 \\ \\&#10;3x-8y=24 \\&#10;3 \times 0 -8y=24 \\&#10;-8y=24 \ \ \ |\div (-8) \\&#10;y=-3 \\ \\&#10;\boxed{(x,y)=(0,-3)}
6 0
3 years ago
Read 2 more answers
Please help me...I don't get it-
DaniilM [7]

Answer:

1. It would be the second block. Bill reads 3 books EACH week. I know you’re looking for that X to be 1 but if you look 3 books x 5 weeks = 15 books and so on.

2. It would be the first block. Exactly on 6 weeks he reads 6 books meaning that by week 3 (which is half) he would have read haof the books (2). And same for week 12 you and another 4 which gets you 8 books.

3. It’s the last block. On week 12 he read 4 books. Half of 12 is 6 so it would be half books and week 3 is half of that which is 1 book per 3 weeks.

4. Is the third block. (Process of elimination lol) but also easily you can find the rate of each week by dividing the 15 books by 10 weeks which gets you 1.5 books read per week

5 0
3 years ago
Read 2 more answers
Which of the following values of y will result in a true statement when substituted into the given equation?
strojnjashka [21]

Answer:

A. -0.8

Step-by-step explanation:

non of the other answers will work because they are positive.

5 0
3 years ago
Read 2 more answers
Other questions:
  • How many people will 5 pitchers serve if pitcher serves 1/8 one person?
    7·1 answer
  • angie has $1,550 in a savings account that pays 2.5% annual simple interest. If she does not make any deposits or withdrawals, h
    13·2 answers
  • Factor completely -4x^2-28x-48
    7·1 answer
  • 5/9 4.9 meters tall ratio
    6·1 answer
  • Add the expressions 4 minus two-thirds b + one-fourth a and One-half a + one-sixth b minus 7. What is the simplified sum?
    10·2 answers
  • What is 37/ 50 as a mixed number or percentage
    5·2 answers
  • Which of the values for x and y make the equation 2x + 3y + 4 = 15 true?
    7·1 answer
  • Plz help this equation is hard for me
    11·2 answers
  • Christian is planning a vacation and finds an airplane ticket that cost 180$. He found a promo code offering 17% off. Write a si
    15·1 answer
  • PLS Help I WILL GIVE INSTANT BRAINLESS] Li walks at a constant rate of 7 ft in 4 s. The table shows the relationship of feet to
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!