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
artcher [175]
2 years ago
6

3x+y=8 I really don't understand this and I have tried to get the answer but always end up wrong.

Mathematics
1 answer:
Alecsey [184]2 years ago
7 0

Answer:

The solution of the system of the equation is (2, 2)

Step-by-step explanation:

Let us solve the system of equations

∵ 3x + y = 8 ⇒ (1)

∵ 3x - y = 4 ⇒ (2)

→ Add equations (1) and (2) to eliminate y

∴ (3x + 3x) + (y + -y) = (8 + 4)

∴ 6x + 0 = 12

∴ 6x = 12

→ Divide both sides by 6 to find x

∵ \frac{6x}{6}=\frac{12}{6}

∴ x = 2

→ Substitute the value of x in equation (1) to find y

∵ 3(2) + y = 8

∴ 6 + y = 8

→ Subtract 6 from both sides

∵ 6 - 6 + y = 8 - 6

∴ y = 2

∴ The solution of the system of the equation is (2, 2)

You might be interested in
Raziel walks 3 m north, 5 m east, 3 m south, and 5 m west. What is the total distance Raziel traveled? (Include
blsea [12.9K]

Answer:

16 metres

Step-by-step explanation:

You're finding the perimetre of this rectangle, so have to add each side together to find the total distance he traveled (the perimetre of the rectangle, since he travelled in a rectangle).

3*2 is 6,

5*2 is 10

10 + 6 is 16.

Have a wonderful day, my friend.

4 0
3 years ago
PLZ HELP BRAINLIEST<br> Which of the following graphs could represent a function?
Serhud [2]

Answer:

C

Step-by-step explanation:

all other graphs couldnt work because their x axis do not pass the vertical line test.

please give brainliest

5 0
2 years ago
Frank says that for any whole number n, the value of 6n-1 is always prime. Is Frank correct? Explain your answer.​
Lady bird [3.3K]

Answer:

Frank is wrong

Step-by-step explanation:

6(6) - 1 = 35

35 is a multiply by 5 so it is not a prime number.

8 0
3 years ago
Find the measure of angle X in the triangle below.
daser333 [38]
Use the Law of Sines to solve.

24/Sin 67.38 = 26/Sin X
Cross multiply
26Sin 67.38 = 24SinX
Divide both sides by 24
(26Sin67.38)/24 = Sin X
Use Sin^-1 to find the angle measure.
Sin^-1 [(26Sin67.38)/24]
x = 89.92 degrees

5 0
3 years ago
A circle has a radius of 2.5 cm. What is the diameter of this circle in cm? Record your answer in Blank 1. What is the circumfer
Eva8 [605]

Answer:

The diameter is 5 cm and the circumference is diameter x pi

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • PLEASE ANSWER QUICK 15 POINTS The dimensions of a triangular prism are shown in the diagram. What is the volume of the triangula
    9·1 answer
  • NEGATIVE EXPONENTS - All of the following expressions are equal except _____.
    15·1 answer
  • What digits can be in the ones place of a number with 5 as a factor
    7·1 answer
  • Paul needs to buy 5/8 pound of peanuts. Measure a pound into sixteenths. What measure is equivalent to 5/8 pound
    14·1 answer
  • ESTIMATE THE ANSWER BY ROUNDING EACH NUMBER TO THE NEAREST 10. 961 + 27.8 + 693.0 + 573 +76.4 =
    6·2 answers
  • DUE NOW PLEASE HELP!!!
    14·2 answers
  • Gloria is making bouquets with silk
    10·2 answers
  • What is the NOT A RESTRICTION on the quotient of quantity 5 x squared minus 10 x minus 15 divided by quantity x squared minus 9
    9·1 answer
  • Rafael is burning a CD for Selena. The CD will hold 35 minutes (2100 seconds) of music. Which songs should he select from the li
    7·1 answer
  • Question 9: Sorry its blurry. Plz help ASAP
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!