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
steposvetlana [31]
3 years ago
5

Solve the following system of equations using the elimination method 5x - y = 10 x + 3y = 4​

Mathematics
1 answer:
Naddik [55]3 years ago
7 0

Answer:

5x - y = 10x + 3y = 4

5x - y = 4..... 1

10x + 3y = 4.....2

multiply by -2 in eq 1 in both sides

-10x + 2y = -8

10x +3y = 4

eliminate one variable by adding the equations

5y = -4

y = - 4/5

sub the value of y in..1

5x - y = 4

5x + 4/5 = 4

5x = 16/5

divide by 5 on both sides

x = 16/25

(x ; y)

(16/25 ; -4/5)

You might be interested in
Find the perimeter of a rectangle with a length of 12 feet and a width of 6 feet.
jeka57 [31]
Perimeter= 2 ( length + width)
2×(12+6)
2×18
=36
3 0
3 years ago
24 x 12 1/2 x 12 3/4 what is the volume of the fish tank
hjlf

Answer:

The volume is 3825 cubic units

Step-by-step explanation:

To find the volume of the fish tank multiply out the dimensions.

We were given the dimensions as:

24 \times 12 \frac{1}{2}  \times 12 \frac{3}{4}

Change the numbers to improper fractions

24 \times  \frac{25}{2}  \times \frac{51}{4}

We cancel out to get

3 \times 25 \times 51

3825

5 0
3 years ago
Plees 555+555 and 6 541,5-5 410,6
Valentin [98]

Answer:

what is this......................

6 0
3 years ago
The measures of angles X and Y are the same, x degrees. The measure of angle Z is twice the measure of angle Y.
Ne4ueva [31]

Answer:

If you're trying to find the measurement of angle z then it'd be 2x degrees, since its twice that of angle y, which is x degrees

Step-by-step explanation:

5 0
3 years ago
Hamid is playing a trivia game with multiple choice questions. Each question has 2 correct answers among 5
goblinko [34]

The probability that Hamid guesses both answers correctly is 10%.

Since Hamid is playing a trivia game with multiple choice questions, and each question has 2 correct answers among 5 answer choices, and Hamid has no idea what the answers to a certain question are, so he needs to choose two different answers at random, to determine what is the probability that Hamid guesses both answers correctly the following calculation must be performed:

  • 2/5 x 1/4 = X
  • 0.4 x 0.25 = X
  • 0.1 = X
  • 0.1 x 100 = 10

Therefore, the probability that Hamid guesses both answers correctly is 10%.

Learn more in brainly.com/question/22049333

6 0
3 years ago
Read 2 more answers
Other questions:
  • How is. X^2=36 rational?
    11·1 answer
  • Manuel is standing 5.3m north of jackets. Rowyn is standing 2.5m west of the jackets . Dennis is standing 1.9m east of the jacke
    11·1 answer
  • The Latin Club charted a bus to travel to and participate in a state competition. The cost for each adult to ride the bus was $2
    15·1 answer
  • 1×100,000+3×10,000+9×1,000+8×100+5×10+2×1 whats the area in standard form and word form?
    14·1 answer
  • Sam typed 570 words and 15 minutes if he continues to type at this rate how many words will he have typed in two hours
    11·2 answers
  • Ms.Smith has 28 sixth graders and 42 seventh graders for math. If she wants to break the two grades into identical groups withou
    11·1 answer
  • The swimming pool at Spring Valley High School is a rectangle with a width of 75 meters and a length of 35 meters. Around the pe
    11·1 answer
  • Can someone plz help me
    8·1 answer
  • Solve the linear equation for x. –4.8(6.3x – 4.18) = –58.56 x =
    8·2 answers
  • LAST ONE THANKSSSS
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!