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
frutty [35]
3 years ago
15

What is the value of y in the solution to the system of equations?x + y = 12x – 3y = –30

Mathematics
1 answer:
evablogger [386]3 years ago
3 0
X + y = 12 . . . . . . . . (1)
x - 3y = -30 . . . . . . . (2)
(1) - (2): 4y = 42
y = 10.5
You might be interested in
Aunt Kendra is pricing cakes for a baby shower she is throwing. She wants one large cake shaped like a duckling and also some cu
Andreas93 [3]

Answer:

$70

Step-by-step explanation:

Middletown Equation:

1c +50 = T

Sweet Shoppe Equation:

2c + 30 = T

Set equations equal to one another and solve for first for cupcakes then for cost.

1c + 50 = 2c + 30

c+ 20 = 2c

20 = c (twenty cupcakes would be ordered)

Now insert into either equation ( or both to check)

1(20) + 50 = 70

2(20)+ 30 = 70

Total cost would be $70

HOPE THIS HELPS!!!

4 0
2 years ago
What’s the value of the ratio 21:45
hichkok12 [17]

Answer:

im not sure but I think it's 1.5

3 0
3 years ago
Read 2 more answers
Simplify this expression.
Grace [21]
11x2 would be your answer.
6 0
3 years ago
Read 2 more answers
3 questions pls help
3241004551 [841]

12. I need the graphs to answer it

11. y = 1/2x - 1

10. The first graph is the best

4 0
3 years ago
Look at points C and D on the graph: HOW U PUT A PHOTO :=)
professor190 [17]

Answer:

6.71

Step-by-step explanation:

If you want to put picture i would recommend using your phone to do it. :]

3 0
3 years ago
Other questions:
  • PLEASE HELP!! 20 POINTS
    6·1 answer
  • PLS HELP ASAP 1st answer will be brainliest, make sure your correct
    13·1 answer
  • Why do ppl vote for hilary
    11·1 answer
  • An integer is chosen at random from the first 40 positive integers. What is the probability that the integer chosen is divisible
    5·1 answer
  • Explain how using a model can help you write a fraction with a denominater of 10 or 100 as a decimal
    8·1 answer
  • Randall buys a wooden board that is 5 7/8 feet long. The cost of the wooden board is 0.25 per foot including tax. Enter the tota
    15·1 answer
  • What is 3/4y=7/8 answer for what is y
    7·1 answer
  • The formula for the circumference of a circle is C = 2πr, where r is the radius. Rearrange the formula to solve for r and select
    6·1 answer
  • (2i)/(3-5i) HELP ASAP --- algebra 2 question
    15·1 answer
  • Assume running consumes 95 cal per mile. If you run 9- minute miles, what is your average power output in watts
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!