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
tekilochka [14]
3 years ago
11

Solve the system of equations by the substitution method

Mathematics
1 answer:
slava [35]3 years ago
8 0

Answer:

x=0.5

y = 10.5

Step-by-step explanation:

y = 3x + 7

y = 5x + 8

3x + 7 = 5x + 8

3x - 5x=  8 - 7

2x = 1

x= 1/2

x=0.5

y = 5x + 8

y = 5(0.5) + 8

y = 2.5 + 8

y = 10.5

You might be interested in
What is the value of 4/15 divided by 2/3
ruslelena [56]

Answer:

0.5

Step-by-step explanation:

I'm guessing os yeahhh

6 0
3 years ago
Explain and demonstrate how to turn 4/20 into a percent
iren2701 [21]

Answer:

20%

Step-by-step explanation:

We can start by looking at it as a ratio, so 4 divided by 20 and 4/20 = 0.2, so that would be 20% viewing 1=100%.

Another way is

20 here is 100%, and for 20 to equal 100, we have to multiply it by 5. To balance it out, multiply the top by 5 as well, and 4 * 5 =20. Therefore, 4/20 = 20%

4 0
2 years ago
Solve the equation V - E + F = 2 for E
Anettt [7]
V + f − e = 2 
<span>Add -2+e to both sides. </span>

<span>v + f − e -2+e = 2 -2+e </span>
<span>On simplification, we get </span>
<span>v + f − 2 = e </span>

<span>Yes, that is the solution for e.</span>
5 0
2 years ago
A science class has 5 girls and 5 boys in the seventh grade and 3 girls and 5 boys in the eighth grade. The teacher randomly sel
alexgriva [62]
So the ratios are 5:5 and 3:5 so the fractions are 5/10 (1/2) for 7th grade and 5/8 for 8th grade
3 0
3 years ago
Read 2 more answers
Which of the following best describes how to find the circumcenter of a triangle?
guapka [62]

Answer: B

Step-by-step explanation: :)

3 0
2 years ago
Other questions:
  • Which expression shows how to find the number of students that play each instrument. How many students play the clarinet?
    13·2 answers
  • The revenue of Apple® went from $54.5 billion in 2013 to $74.6 billion in 2015. Find an exponential function to model the revenu
    14·1 answer
  • if b =the number of blackbirds that flew away away which mathematical sentence expresse the information
    12·1 answer
  • Determine whether the given description corresponds to an observational study or experiment
    6·1 answer
  • Please help!! I really don't want to get this one question wrong and mess up my score :(
    14·2 answers
  • I WILL GIVE 30 PTS!!! HELP PLEASEEEE!
    8·2 answers
  • Dominica has a total of 22 coins in her pocket, all of
    7·2 answers
  • Lin’s family needs to travel 325 miles to reach her grandmother’s house. At 377 miles, what percentage of the trip’s distance ha
    6·2 answers
  • Help? question below
    5·2 answers
  • This is lines, functions and systems. Graph the line with slope 1 passing through the point (4, 2).
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!