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
Deffense [45]
3 years ago
11

What is the solution to the system: ax+y=18 and 4ax-y=12? Use elimination. Put the answer as an ordered pair. Show work on the n

ext question. You have 3 unknowns and only 2 equations so you can have the variable "a" in your solution
Mathematics
2 answers:
Anit [1.1K]3 years ago
8 0

Answer:

{(\frac{6}{a},12)}

Step-by-step explanation:

\left \{ {{ax+y=18} \atop {4ax-y=12}} \right.

5ax = 30

x = \frac{6}{a}

a(\frac{6}{a}) + y = 18

6 + y =18→y=12

4a(\frac{6}{a}) - 12 = 12

6 - 12 = 12 → 12 = 12 true  x=\frac{6}{a}  y=12

Alchen [17]3 years ago
5 0

Answer:

Ax=6

Y=12

Therefore a=6, x=1, y=12

You might be interested in
Two families went to Rollercoaster World.
Alona [7]

Answer:

Children ticket cost $30 and adult ticket costs $40.

Step-by-step explanation:

Given that:

x = price of a child ticket

y = price of an adult ticket

According to given statement;

3x+2y=170     Eqn 1

4x+6y=360    Eqn 2

Multiplying Eqn 1 by 3

3(3x+2y=170)

9x+6y=510      Eqn 3

Subtracting Eqn 2 from Eqn 3

(9x+6y)-(4x+6y)=510-360

9x+6y-4x-6y=150

5x=150

Dividing both sides by 5

\frac{5x}{5}=\frac{150}{5}\\x=30

Putting x=30 in Eqn 1

3(30)+2y=170

90+2y=170

2y = 170-90

2y = 80

Dividing both sides by 2

\frac{2y}{2}=\frac{80}{2}\\y=40

Hence,

Children ticket cost $30 and adult ticket costs $40.

6 0
2 years ago
The Eurasian tectonic plate travels at a
Ronch [10]

Answer:

17.5 cm

Step-by-step explanation:

Multiply 0.7 by 25 to get 17.5 cm.

Hope it helped.

8 0
3 years ago
HELP ASSAP WITH THIS QUESTION!!!!
avanturin [10]
(-5,6) (-5,-6) (4,-6)
I hope it helps you!!

3 0
3 years ago
Brandon had $500. He spent 47% of his money on a tablet computer. How much did his computer cost?
Kobotan [32]
47% of 500 is 235 dollars
8 0
3 years ago
Read 2 more answers
Explain how to do this
Lera25 [3.4K]
Average of 2 numbers is 40
so total = 2 x 40 = 80

300 - 80 = 220

average of remaining 10 numbers = 220/10 = 22

answer
B) 22
6 0
3 years ago
Other questions:
  • If the circumference of a circle is 44 n feet, what is the radius?
    10·1 answer
  • Rewrite as a simplified fraction help please<br>ty _<br> 0.3 = ?
    13·1 answer
  • The length of a rectangle is 4 more than twice the width of the rectangle. The perimeter of the rectangle is 92 centimeters. Fin
    15·2 answers
  • IN<br> 4. Solve: 9p² -3 = 7
    8·1 answer
  • What percent of 80 is 90?
    8·2 answers
  • A pack of 12 sodas cost $5.04. what is the unit rate in dollars per soda
    8·1 answer
  • Circle R has equation
    6·1 answer
  • High School sold tickets to the winter dance for $3.50 in advanced and $5.00 at the door. If 115 people attended the dance and H
    12·1 answer
  • What is the relation between angles x and y?
    12·1 answer
  • Buns,cost 40p each. Cakes cost 55p each. I spend exactly £4.35 on buns and cakes.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!