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
suter [353]
3 years ago
5

Solve the system of equations using substitution. Write the solution as an ordered pair.

Mathematics
1 answer:
IrinaK [193]3 years ago
4 0

Answer:

  (-3, 3)

Step-by-step explanation:

Substitute for y:

  x+6 = -2x -3

  3x = -9 . . . . . . . add 2x -6 to both sides

  x = -3 . . . . . . . . divide by 3

  y = (-3) +6 = 3 . . substitute for x in the first equation

The solution is ...

  (x, y) = (-3, 3)

You might be interested in
Tyler looks at a map on his phone. He zooms in until the map scale for centimeters to kilometers is 0.3 to 1/5. How many centime
lutik1710 [3]

one kilometer is equal to a hundred thousand centimeters

5 0
3 years ago
Megan got paid $2,156 for babysitting this year. If she makes $11 an hour, how many hours did she babysit this year​
Elenna [48]

Answer:

she worked 196 hours

Step-by-step explanation:

just divide 2156 by 11 :p i hope im right lol.

4 0
3 years ago
There is an animal farm where chickens and cows live. All together, there are 84 heads and 210 legs. How many chickens and cows
Ira Lisetskai [31]

1 Chicken have = 2 legs

1 Cow have = 4 legs

No of cows = x

No of chickens = y

Total no of legs = 4x + 2y = 210.............(1)

Total No of heads = x + y = 84................(2)

x = 84 - y....( from (2) )

Substituting the above equation in (1)

4 ( 84 - y) + 2y = 210

336 - 4y + 2y = 210

336 - 2y = 210

-2y = -126

= y = 63

No of cows = 84-63 = 21

∴ <u><em>Total no of cows = 21</em></u>

<u><em>Total no of chickens = 63</em></u>

5 0
3 years ago
0.5(-10 + k) I did help asp
lana66690 [7]

use distributive property

0.5 x -10 = -5

0.5 x k = 0.5k

0.5(-10 + k) = 0.5k -5

7 0
3 years ago
Read 2 more answers
The mean age of 5 people in a room is 28 years.
lina2011 [118]

Answer:

174

Step-by-step explanation:

You should look at the mean and do this:

5*28 so now you know all the ages which is 140 now you do 140/29 and you get 4.8....... so you  can see that the answer is 174

4 0
3 years ago
Other questions:
  • Translate into an algebraic expression:
    7·1 answer
  • Can someone explain this to me?
    14·1 answer
  • The following graph shows a proportional relationship.
    5·1 answer
  • What is the answer of 2/3-6/10
    15·2 answers
  • PLEASE HELP PLEASEEEE
    10·1 answer
  • What is the 11th term of the geometric sequence with this explicit formula?<br> an = 5.(-2)(n-1)
    11·1 answer
  • 1 + 1<br><br> I’m having real trouble with this one :(
    5·1 answer
  • A number when added to it's two thirds is equal to 55 find the number
    11·1 answer
  • 0.14 divided by 16.2
    14·2 answers
  • Help this is urgent <br>no nonsense answers please I have 3 hour's left​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!