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
Diano4ka-milaya [45]
3 years ago
5

How to find where the equations meet.

Mathematics
1 answer:
zzz [600]3 years ago
3 0
The first sentence → x - 2y = -1
the second one → 3x - 2y = -3

multiply the first one by -1
you can get → -x + 2y = 1

plus two sentences together
you can get → 2x = -2

so you are able to know that x = -1
and y = 0
You might be interested in
Q4H: The question is in the picture below (please show work) :
Ipatiy [6.2K]
-3x-5=16
-3x-5(+5)=16+5
-3x=21
-3x/-3=21/-3
x=-7

-4(y-2)=12
-4y+8=12
-4y=4
y=-1

8.88=4.44(x-7)
8.88=4.44x-31.08
39.96=4.44x
9=x

5(y+2/5)=-13
5y+2=-13
5y=-15
y=-3
4 0
2 years ago
What is the value of the expression when y = 2 2-y/4+y + 3(y+2)/y​
nexus9112 [7]

Answer:

=2y+22

Step-by-step explanation:

What is the value of the expression when y = 2 2-y/4+y + 3(y+2)/y​  

Sorry if I am wrong

7 0
2 years ago
A walkway is being installed around a rectangular playground. The playground is 30 feet by 12 feet, and the total area of the pl
worty [1.4K]

Answer:

10.3

Step-by-step explanation:

From these question, we can illustrate the playground has a small rectangle with 30x12ft

the walkway is around it with an area of 1288ft²

the playground area = 30 x 12 = 360ft²

the length dimension of the walkway is 30+y+y( these is because the walkway is round the playground in two sides) = 30 +2y

the breadth dimension of the walkway is 12+y+y ( these is because the walkway is round the playground in two sides) = 12+2y

Area of walkway = (30+2y)(12+2y)= 30(12+2y)+2y(12+2y) = 360+60y+24y+4y²= 360+84y+4y²

The total area = 1288ft²

The total area = area of walkway - area of playground

1288ft² = 360+84y+4y² - 360

choose like terms

1288 = 360-360+84y+4y²

1288 = 84y+4y²

divide by 4

322= 21y+y²

y²+21y-322 =0

using quadratic formula

x= (-b±√b²-4ac)/2a = {-21±√21²-4(1)(-322)}/2x1 =  {-21±√441+1288}/2x1  = -21±√1729/2

-21+√1729/2   -21-√1729/2

√1729 = 41.5812457726

-21+√1729/2   -21-√1729/2

{-21+41.5812457726}/2   {-21-41.5812457726}/2

20.5812457726/2          -62.5812457726/2

10.2906228863              -31.2906228863

we disregard the negative sign

our width is 10.2906228863 ≅10.3

4 0
2 years ago
Read 2 more answers
Does the equation y= 4x - 9 show a proportional relationship between x and y
andrew-mc [135]
Yes

Mark brainliest please
7 0
2 years ago
72 times 73? <br>Need help answering​
Mkey [24]
The answer is 5256.
8 0
3 years ago
Read 2 more answers
Other questions:
  • How do you do this in simplest form
    10·1 answer
  • The ratio of boys to girls is 40:56 what is the ratio in lowest terms
    6·1 answer
  • Alguien me puede ayudar con esto por favor!!!!
    7·1 answer
  • 20 POINTS!!!! This graph shows the costs of purchasing two types of bird seed mix.
    10·1 answer
  • Which statement about speed and/or velocity is true? an airplane was at 34500 feet in the air before it descents the airplane de
    11·1 answer
  • Expand the brackets
    14·1 answer
  • In a given year there is a 3% chance you will get in a small accident costing around $2000 and 0.1% chance you will get in a maj
    8·1 answer
  • What is 13 to the second power
    8·2 answers
  • Ahdjfvjxbxnxjzjsjnsmsnsns​
    6·2 answers
  • HELP I did it BUT I got it wrong , can you please tell me the correct answer and show step by step!! tysm, thank you so much.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!