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
Nat2105 [25]
3 years ago
13

Solve the system by substitution. y=6x y=3x+21 ( , )

Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Answer:

(7,42)

Step-by-step explanation:

Imput the 6x for the Y:

6x=3x+21

move the variable to the left

6x-3x=21

collect like terms:

3x=21

divide both sides by 3x and youll get this for X

x=7

Imput x=7 into the equation

Y=6x7

solve:

y=42

You might be interested in
The ratio of sixth graders to seventh graders at the school dance is 2 to 3.
Inessa [10]

Answer:

18

Step-by-step explanation:

2:3 x 9

18:27

18 + 27 = 45

6 0
3 years ago
Please help please !!!!!!!!!!!!!!!
alukav5142 [94]

Answer:

Linear

The function is linear since the graph of it would be a straight line. You can tell this by looking at the equation since there are no squares, roots, division, etc. that would make the line stray.


4 0
3 years ago
{20, 30, 40, 50, 60, 70, 80} The mean of this set of numbers is A) 20 B) 50 C) 55 D) 60
shusha [124]

Answer:

50

Step-by-step explanation:

Adding up 20, 30, 40, 50, 60, 70, 80, we get 350.  There are 7 numbers in this set, so divide this 350 by 7.  We obtain the mean, 350/7 = 50 (Answer B)

4 0
3 years ago
Read 2 more answers
Tiana helped make signs for the school marching band’s fundraiser. Each side of the square sign she made was 60 3/4 centimeters.
Minchanka [31]

Answer:

243

Step-by-step explanation:

60 3/4 × 4 (sides)

60×4 = 240

3/4×4 = 12/4 = 3

240+3 = 243

3 0
3 years ago
A savings account with 500 now has 120
vovangra [49]

Answer:380

Step-by-step explanation:

500-120=380

7 0
3 years ago
Read 2 more answers
Other questions:
  • Photo attached. Geometry ‍♀️
    13·1 answer
  • An American car travels 32 miles on one gallon of gas. A European car travels 12.7 kilometers on one liter of gas. Which car get
    9·1 answer
  • The city mayor wants to use the reserved section of a rectangular park for gardening lessons conducted by the city public school
    11·2 answers
  • Which of the following lines is not parallel to y = - 3x - 7?*
    11·1 answer
  • On Monday 430 students went on a trip to the zoo all 9 buses were filled and seven students had to travel in cars how many stude
    14·1 answer
  • Help !!!! Please number 1
    8·1 answer
  • If y varies directly as x, find the unknown value in the problem below:
    9·1 answer
  • Write an equation of the line with a slope of — 7 and y-intercept of 1.
    7·1 answer
  • Thanks for any help. i’ll give 5 stars and thanks.
    15·1 answer
  • A triangle has one angle that is 70 degrees and another that is 75 degrees. What is the third angle value in degrees?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!