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
finlep [7]
3 years ago
12

Solve for x and y. 3x+8y=20. 5x+3y=23

Mathematics
2 answers:
GrogVix [38]3 years ago
6 0

Answer:

x=4 and y=1

Step-by-step explanation:

Equation 1) 3x+8y=20  

Equation 2) 5x+3y=23

Equation 1) 5(3x+8y=20 )  

Equation 2) 3(5x+3y=23)

15x+40y=100

15x+9y=69

(Take away 40y from 9y and 100 from 69)

31y = 31

y=1

Substitute y=1 into equation 1)

3x+8=20

(Take away 8 from both sides)

3x=12

(Divide by 3)

x=4

Virty [35]3 years ago
4 0

Answer:

Equation 1:

x= -8/3y + 20/3

y= -3/8x + 5/2

Equation 2:

x= -3/5y + 23/5

y= -5/3x + 23/3

Step-by-step explanation:

SEE BELOW FOR STEPS

You might be interested in
What is the surface area of the triangular prism?
MArishka [77]

Answer:

135

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How can I solve this question
Rus_ich [418]
To find the volume of the prism, you need to know the length, height, and width. 
since the length is 4 blocks wide, you can multiply 4 by the length of a single block. 4*1/2 = 4/2. do this for the height and width
Length 4/2
height 7/2
width 3/2
you would then multiply all of them together.
to multiply fractions, just multiply the numerators together and the numerators together

4/2*7/2*3/2 = 84/8
both 84 and 8 are divisible by 4 so you could simplify the fraction to 21/2
the answer is C
3 0
3 years ago
Name a combination of coins that is 125% of the value of a dollar.
sweet-ann [11.9K]
9 quarters...................
5 0
2 years ago
Read 2 more answers
Estimate the sum of 21+17.
goldfiish [28.3K]
40 Is The Sum Of 21+17.
8 0
3 years ago
Read 2 more answers
The following table shows the number of classes that
Tresset [83]

Answer:

There are 6 classes we find the median by finding the middle number of the 3rd highest class and 4th highest class, even if this is a decimal.

6/3 = 3+ 0.5

The process would be different if some values are the same values already on the chart total of each class.

ie) 20  31  14  22 20 31

small data like this below you can rearrange

14  20  20  22  31 31  

and see that 21 is the correct value

as there are even numbers, so we choose 20 , 22

and select the middle value = 21

Step-by-step explanation:

If there is an even number of numbers locate the two middle numbers so that there is an equal number of values to the left and to the right of these two numbers. Step 3: If there is an odd number of numbers, this middle number is the median. If there is an even number of numbers add the two middles and divide by 2.

7 0
3 years ago
Other questions:
  • Troy is making a flag shaped like a square.Each side measures 12 inches.he wants to add ribbon along the edges. He has 36 inches
    15·1 answer
  • the jars of paint in the art room have different amounts of paint the green paint jar is 4/8 School the purple paint jar is 4/6
    15·1 answer
  • A circle is centered at (−4, −6) and has a radius of 3. Which of the following is the equation for this circle?
    14·2 answers
  • What is the area of the figure below?<br><br> 45 in^2<br> 90 in^2<br> 135 in^2<br> 180 in ^2
    10·2 answers
  • Which expression is equivalent to 24x + 12?
    5·1 answer
  • What is the approximate volume of the pyramid?
    7·1 answer
  • Find the volume of the cone
    13·1 answer
  • I NEED ANSWER ASP PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER
    14·1 answer
  • Someone please help me on both the questions!!!
    6·2 answers
  • What is the solution to the equation 3√x+4+3/2x+8 = 0?<br> Ox=-12<br> Ox= -4<br> x = 4<br> O x = 12
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!