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
icang [17]
3 years ago
13

Solve each system by substitution method x+y=4 y=3x

Mathematics
1 answer:
valentina_108 [34]3 years ago
3 0
X+y=4 y=3x
x+3x=4
4x=4
divide both sides by 4
x=1
You might be interested in
One bag of lawn fertilizer can cover approximately 5,000 square feet. Mike’s lawn is about 500 square feet. When Mike applies fe
Dvinal [7]
5,000 - bag of fertilizer
500 - Mike’s lawn
3/4 - applied fertilizer
4 - frequency in 1 year

(500 x 3/4 )x 4
(1500 / 4 ) x 4
1500 sqm / yr

5,000 sqm / 1500sqm/yr
3.33 yr

He will be able to fertilize it in 3 full years
3 0
3 years ago
What is the soulation to 2x - 8 greater than 12
Masteriza [31]

Answer:

x > 10

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
In a cookie jar, 1/4 of the cookies are chocolate chip, and 1/4 of the rest are peanut butter..What fraction of all the cookies
evablogger [386]

1/4 × 1/2 multiply 1/2 by 2 to get 2/4 then add 1/4 and 2/4 ur answer 3/4 the fraction of all the cookies that is peanut butter is 3/4


3 0
3 years ago
Read 2 more answers
ABCD is a quadrilateral. Work out the length of BC.
Pani-rosa [81]
The answer is B.C. =8.1cm
The working is on the picture

8 1
3 years ago
What is the equation of the following graph?
ser-zykov [4K]

Answer:

y=0.5x + 5

Step-by-step explanation:

The points are (0,5) and (-10,0)

to find the slope do

0-5/-10-0 = 5/10 = 1/2 = 0.5

next plug one of the points into point slope formula

y-y1=m(x-x1)

lets use the point (-10,0)

y1=0

x1= -10

m= 0.5

y-0=0.5(x- -10)

y = 0.5(x+10)

distribute the 0.5

y=0.5x+5

7 0
2 years ago
Other questions:
  • What does ^ this stand for
    6·2 answers
  • Solve the system of linear equations using elimination.
    10·1 answer
  • Parallel to the line y= -2x + 4 and passes through point A(2, 4)
    11·2 answers
  • 12.21 is 3.7 times the number p.
    6·1 answer
  • The GCF of the numbers in the expression (32 + 16)
    10·2 answers
  • that there exists a pair of consecutive integers such that one of these integers is a perfect square and the other is a perfect
    6·1 answer
  • PLEASE HELP 10 POINTS
    12·2 answers
  • What would the equation look like if you
    5·1 answer
  • X + 15y = 45 / x + 10y = 30 solve for x and y
    15·2 answers
  • Each month, a phone company charges $20 for 500 minutes of talk time plus $0.45 for each additional minute. Unlimited texting co
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!