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
Marta_Voda [28]
3 years ago
13

Solve the system of equations using the substitution method.

Mathematics
1 answer:
valentina_108 [34]3 years ago
5 0
Multiply 3x +y =23 by -4

x+4y=4
-12x+(-4y)=-92

Add together

-11x = -88

x = 8

Plug x in to find y.

8 + 4y = 4

Subtract 8 from each sides

4y = -4

Divide by 4

y = -1

So the answer is x =8, y= -1

I hope that helps!
You might be interested in
Find the indicated term of the given arithmetic sequence. a1=45, d= -3, n=10
klasskru [66]

In this sequence, we're given the first term, which is 45.

The difference between each term is -3, which means 3 will be subtracted in each term.

We're asked to find the value of the tenth term, and we can do so by using this formula:

a(n) = a(1) + d(n - 1)

Replace values.

a(10) = 45 + -3(9)

a(10) = 18

<h3>The value of the tenth term is 18.</h3>
3 0
3 years ago
Read 2 more answers
2. The following formula, F = ma, relates three quantities: Force (F), mass (m), and acceleration (a). (a) Solve this equation,
erica [24]
A) F/m=a
B) a would equal -3.4
C) m would equal 3
5 0
4 years ago
Read 2 more answers
Someone please help me
ad-work [718]

Answer:

It's A.

Step-by-step explanation:

Because whatever goes into the absolute value symbol, it'll turn out positive. And real numbers could only be positive.

7 0
2 years ago
Which customary unit would be best to measure the capacity of water in a dolphin tank at an aquarium?
rewona [7]
The best unit to measure the capacity of water, would be gallons
5 0
3 years ago
Read 2 more answers
On the number line below, which value is most likely represented by the point indicated by the arrow?
Yanka [14]

Answer:

pi

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Please help I only have 10 minutes!
    11·1 answer
  • Lauren owns a sign company. She borrows $75 000 to purchase a laser engraver. The
    5·1 answer
  • In Euclidean geometric terms, which of the below would be the best description of any ANGLE?
    5·2 answers
  • suppose that the first player draws a silver marble and wins a small prize what is the probability that the second player will a
    15·1 answer
  • a right angle triangle has the perimeter of 96cm. the length of its sides are in the ratio of 6:8:10. work out the area of the t
    5·2 answers
  • What is the greatest common factor of 16,32, and 44?
    8·1 answer
  • find the mean, median, and mode of the data set. round to the nearest tenth. test scores on a math exam: 88,89,65,62,83,63,74,64
    9·1 answer
  • HELP! I’ll MARK BRAINLIEST
    12·1 answer
  • The third mean of a GP of two numbers 27 and 1/27 is 1. Find the number of means. ​
    11·2 answers
  • There is a boardwalk game at Point Pleasant where you are blindfolded to throw darts at a board full of balloons. Each time a da
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!