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
kap26 [50]
3 years ago
6

Solve: 2x+4y=20 and 2x-y=4

Mathematics
2 answers:
Masteriza [31]3 years ago
5 0

Answer:

X=3.6

Y=3.2

Step-by-step explanation:

  1. 2x-y=4 which means 2x=<u>4+y</u>
  2. 2x+4y = 20 which means <u>4+y</u>+4y=20 ==> 4+5y=20
  3. 5y = 20-4 = 16
  4. y= 16/5 = 3.2
  5. 2x=<u>4+y</u>=4+3.2=7.2
  6. x = 7.2/2 = 3.6

fgiga [73]3 years ago
4 0
Answer:
(x, y) = (18/5, 16/5)
OR
(x, y) = (3.6, 3.2)
You might be interested in
Find y' if y=cos(x+5) multiple choice
Dmitry_Shevchenko [17]

Answer:

The last one is the correct answer.

Step-by-step explanation:


8 0
3 years ago
15 points and Will give branliest !!
prisoha [69]

Answer:

Midpoint of a line segment with the endpoints A(a1, a2), B(b1, b2) is M(1/2*(a1 + b1), 1/2*(a2 + b2))

So,

(1/2*(-4 + 7), 1/2*(-3 + (-5))) = (1/2*3, 1/2*(-8)) = (1.5, -4)

Answer D is correct.


8 0
3 years ago
Please please please help me
RoseWind [281]

Answer:

b) 300in^2

Step-by-step explanation:

area of triangle = base x heigth / 2

                              10 .   x     10    / 2 = 100/2 =50

surface area of one face is 50

there 4 sides so 50 x 4 = 200

and the bottom is length x width = 10 x 10 = 100

100 + 200 = 300

4 0
2 years ago
Can someone help with number 4. I will reward brainliest.
liraira [26]

Answer:

theta = pi/6 and

theta = 5pi/6

Step-by-step explanation:

see image. Factor the expression. Solve for sin theta. Then use a calculator or unit circle to solve for theta. See image.

5 0
1 year ago
Read 2 more answers
Write down the possible values for n:<br> -15 &lt; 3n ≤ 6
anygoal [31]

Step-by-step explanation:

Move all terms that do not contain nn from the middle section of the inequality.

−5 <n≤2 - 5 <n≤2

8 0
3 years ago
Read 2 more answers
Other questions:
  • This is the question is Estimate. 9.8 * 5.2 Choose 1 answer: a 5 b 50 c 500 d 5000
    5·2 answers
  • While on a beach vacation, Tasha makes a scale drawing of points of interest between two
    10·1 answer
  • The Arnold family arrived at the beach at
    5·2 answers
  • Answer this please ASAP
    9·1 answer
  • Solve for y.<br> -1 = 8+3y<br> Simplify you answer as much as possible.
    9·2 answers
  • Now that you have the height of the cone how can you solve for the slant height ?
    5·1 answer
  • Solve<br> 4(-5)(-2)(-3)<br> show your work&lt;3<br> no links
    6·2 answers
  • Solve -2(5x – 3) = 41.
    10·2 answers
  • What is the volume of the can below? Use = 3.14 and round your answer to the nearest tenth.
    10·2 answers
  • PLRASE HELPPP PLS IM STUCK
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!