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
VARVARA [1.3K]
3 years ago
9

X+2y=8 x-2y=-4 solve by system of equations

Mathematics
1 answer:
Vsevolod [243]3 years ago
3 0

Answer:

Step-by-step explanation:

x + 2y = 8 -----------(I)

x - 2y  = -4 -----------(II)

Add equation (I) & (II) and thus y will be eliminated and we can get the value of 'x'

(I)           x + 2y = 8

(II)          <u>x - 2y  = -4</u><u>      </u>{Now add}

           2x         = 4

                   x   = 4/2

x = 2

Substitute x =  2 in equation (I)

2 + 2y = 8

    2y = 8 - 2

    2y = 6

      y = 6/2

y = 3

You might be interested in
Solve 247 divided by 10(^2) . and 247x10 (^2)<br><br> what's different about the two answers?
guajiro [1.7K]
247 divided by 10^2 is 2.47 and 247 times 10^2 is 24,700

6 0
3 years ago
How many students had fewer than 5 buttons on their clothes. <br> a:9 <br> b:18 <br> c:2 <br> d:11
Bingel [31]

Answer:

D) 11

Step-by-step explanation:

If you start at five and count back on each little x

than you should come up with 11

0=3

1=1

2=2

3=4

4=1

3+1+2+4+1=11

You do This because you need to find how many has fewer so you don't count 5

3 0
3 years ago
Which is the simplified expression for questions 1 2 3 4? (Look at photo)
Anit [1.1K]
1. 9.5x + 1.5
2. 9x + 36
3. 4.8x + 2
4. 22x + 2
6 0
2 years ago
Boys to girls ratio is 2 to 3. There are 18 girls. What is total number of students
alexdok [17]

\frac{2}{3}=\frac{boys}{18}

3*boys=2*18

3*boys=36

boys=12

12+18=30

total number of students: 30

8 0
3 years ago
Read 2 more answers
Paulina works out with a 2.5 kilogram mass. What is the mass of the 2.5 kilogram mass in grams?
Liono4ka [1.6K]
2.5 kilograms in grams is 2500 grams.

2.5kg = 2500g
5 0
3 years ago
Other questions:
  • list all of the ways that a square can be correctly classified ( or named ) and Explain why each of the different names is also
    11·1 answer
  • Kathy was at a cabin for four nights. The outside temperatures for the four nights were: Night One:   −10 °F      Night Two:    
    12·2 answers
  • Meredith has a book report coming up in a couple of weeks. She still has 3/4 of her book to finish reading. She decides to read
    7·1 answer
  • 39 is 150% of what number?
    14·2 answers
  • A soda shop owner told his employee to add 2 cups and 1/5 of a cup to each gallon of soda. If there were 4 gallons of soda how m
    10·1 answer
  • −8x2(2y − 3x) multiply
    13·1 answer
  • The function f(x)=(x-4)(x-2) what is the range of the function
    5·1 answer
  • Fractions and properties of addition
    11·1 answer
  • If we changed the 3 to a 0 in the equation, what would happen to the graph?
    7·2 answers
  • The Bedrock water department has a monthly service charge of $6.80 and a volume charge of $1.80
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!