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
Thepotemich [5.8K]
3 years ago
8

Given the system of equations, what is the solution? 5x - 4y = 7 x = 5 - 3/2 y

Mathematics
2 answers:
xenn [34]3 years ago
8 0
The answer is A


You can solve this by equation the two equations, by substitution method or elimination. Let's choose the substitution since Equation 2 has already X isolated
-take the X in equation 2 and substitute in the first equation
So, You should have 5 (5-3/2 y) -4y =7
Get y ( I'll assume you know how to simplify and find y by yourself )
y=36/23
-Now take y and substitute it in the first equation or the second equation (it doesn't really matter)
Substituting y in Equation 2:
x=5- 3/2 (36/23)
=> x= 61/23

So answer is A where (x,y) is (61/23, 36/23)
tester [92]3 years ago
8 0

Answer:

Option A is correct.

Step-by-step explanation:

Given system of equations are

5x - 4y = 7 ...............(1)

x = 5 - 3/2y .................(2)

value of x from equation (2), put in equation (1)

5(5-\frac{3}{2}y)-4y=7

25-\frac{15}{2}y-4y=7

-\frac{15}{2}y-\frac{8}{2}y=7-25

\frac{-15-8}{2}y=-18

\frac{-23}{2}y=-18

y=-18\times\frac{-2}{23}

y=\frac{36}{23}

Now, Value of x = 5-\frac{3}{2}\times\frac{36}{23}=5-\frac{54}{23}=\frac{115-54}{23}=\frac{61}{23}

Solution of given system is (\frac{61}{23},\frac{36}{23})

Therefore, Option A is correct.

You might be interested in
dele took 25 minutes to walk to school and he arrived at exactly 8:00am, at what time did he leave his home​
Roman55 [17]
I think it would be around 7:30am
4 0
2 years ago
5 is subtracted from three-fifths of x...please someone translate this expression for me.​
Fudgin [204]
3/5x-5
I believe this is the expression that is described.
8 0
3 years ago
Your brother is 1/6 your age. Your sister is 7 years older than your brother. Your sister is 10 years old. Write and solve an eq
mr Goodwill [35]

Answer:

you are 18

Step-by-step explanation:

10-7=3

3*6=18

or backwards,

18*1/6=3

3+7=10

5 0
3 years ago
Read 2 more answers
Part A and Part B Plzzzz
LenKa [72]

Answer:

Part A:

Length A=5

Length B=4

Part B:

The volume of the trough is 88

Step-by-step explanation:

7 0
3 years ago
At what point does the line given by the following equation cross the y-axis?
QveST [7]
Pretty sure the answer is D:

Because the equation is in the format y=mx+c (c being the y intercept), we know that the y intercept (or where the line will cross the y axis) will be -9.

B also says -9 but we have to be careful because it states that the x axis is -9 rather than the y axis.

Hope that helped you understand.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Explain how you would use equivalent fractions to solve 0.5 + 0.10
    15·2 answers
  • Given that 1 pound equals 16 ounces, how many pounds are in 152 ounces?
    10·2 answers
  • What value of x makes this equation TRUE? 4x + 2 = −14
    5·1 answer
  • How do you solve #18?
    7·2 answers
  • Order the numbers −7​, 2​, −4​, 8 from least to greatest
    14·2 answers
  • This should be some simple math with some steps but i really need help beause i dont understand the problems
    14·1 answer
  • Helppp pleaseeee!!!!
    8·1 answer
  • One tennis club charges $22 per session to play tennis. Another tennis club charges an annual fee of $40 plus $16 per session. A
    12·1 answer
  • Roxanne invests $4.000 into an account that pays 4% simple interest. Roger invests the same amount of money with the same rate,
    10·2 answers
  • Find the Greatest Common Factor of 12 and 18, show all your work
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!