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
wariber [46]
3 years ago
15

Solve the system of equations.​

Mathematics
1 answer:
Alchen [17]3 years ago
5 0

Answer:

x = 10, y = 5

Step-by-step explanation:

Substitute the second equation into the x value of the first equation.

-4x + 11y = 15

-4(2y) + 11y = 15

-8y + 11y = 15

3y = 15

y = 5

Now substitute the y value into an original equation.

x = 2y

x = 2(5)

x = 10

You might be interested in
Cos (theta) = square of 2 / 2, and 3*pi/2 < theta < 2*pi, evaluate sin (theta) and tan (theta)
lora16 [44]

Answer: negative square root of two over 2 and tan theta is -1

Step-by-step explanation:

Did it on edge and got it right

7 0
3 years ago
How many solutions does this equation have?
drek231 [11]

The answer is infinitely many solutions because 0 = 0.

If you don't seem to see where I got 0 = 0, look at the equation,

4b – 4b = 0

first lets do the math on the left side.

4b - 4b  is equal to 0.

so lets put 0 on the left side, now lets look at the equation all together,

0 = 0,

and this means that it has infinitely many solutions.

The reason why it is not no solution because no solution means when there are no answers to the equation. For example, the solution is not true, such as the equation 24 ≠ 29. This is a no solution equation. One solution can be 4x = 20, as x = 5, concluding it being one solutions.

5 0
3 years ago
Read this scenario and answer the question that follows it.
Aleks [24]
By increasing the number of blue widgets supplied
5 0
3 years ago
Read 2 more answers
Find the slope of the line through each pair of points (19,9),(15,-3)
stepan [7]
Slope (y2-y1)/(x2-x1)
(-3-9)/(15-19) = -12/-4 = 3
The slope is 3
4 0
3 years ago
Hazel drove 41 miles. Hazel's car used 2 gallons of gas. How many miles per gallon did Hazel's car get? HELP!
horrorfan [7]

Answer:

she used 20.5 miles per gallon!

Step-by-step explanation:

41/2 = 20.5

3 0
3 years ago
Other questions:
  • on three days last week maria ran 3/4 mile 7/8 mile and 3/5 mile. List the distances in order from least to greatest
    6·2 answers
  • A six-sided, fair number cube is rolled 100 times as part of an experiment. The frequency of the roll of the number 3 is 20. Whi
    11·3 answers
  • How do you do this solved by substitution?
    6·1 answer
  • Please please please help
    11·1 answer
  • The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term, but a
    12·1 answer
  • If 3=7k and 7= m/2 then mk=
    10·1 answer
  • Help me please!! link=reprted sorry :( will give brainliest if you get it right!!
    11·2 answers
  • In pairs of similar polygons, corresponding angles are always _______
    5·1 answer
  • NEED ANSWER ASAP pls
    7·1 answer
  • Help me with this problem
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!