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
Sedaia [141]
3 years ago
7

Solving systems by substitution: -3x + 2y = 24 x + y = -3

Mathematics
1 answer:
skad [1K]3 years ago
3 0

X= -6

Y= 3

Solve for y in the equation x+y= -3

Substitute that answer into the equation -3x+2y=24


You might be interested in
Dan bought 5 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now
horrorfan [7]

Answer:

79

Step-by-step explanation:

Let's say that N is the number of cards.

So the first step is N+5, because dan bought 5 new cards.

Next his dog ate half the collection, so the 2nd piece of the problem is \frac{N+5}{2}

The last step is to now make it an equation. Because there are now 46 cards left, \frac{N+5}{2}=42.

Now solve for N which is N+5=84=> N=79

brainliest would be appreciated!

5 0
3 years ago
Read 2 more answers
Solve the system of linear equations given below.
charle [14.2K]

Answer: C

Steps:  4x + y = -4,    x + y = 2

Isolate the x for (x + y = 2):       x = 2 - y

Plug the value of x into the other equation:   4(2 - y) + y = -4

Simplify: -4y + 8 + y = -4

Combine like variables (letters): -4y + y = -3y

So -3y + 8  = -4

Subtract eight from both sides: -3y + 8 - 8 = -4 - 8

-3y = -12

Divide both sides by negative three: -3y ÷ -3  =  -12 ÷ -3

Simplify: y = 4

Plug the value of y into one of the original equations (I'll use  x + y = 2):  

So x + 4 = 2

Isolate the x variable: x = -2

8 0
3 years ago
What is 1.35 x 10 -5 written in standard form?
Lilit [14]

Answer:

8.5

Step-by-step explanation:

1.35 multiplied by 10 = 13.5

13.5 - 5 = 8.5

8 0
3 years ago
Chuck put new wallpaper in his bathroom. The pattern of the wallpaper
nikdorinn [45]

Answer:

<em>x = 2.93</em>

Step-by-step explanation:

The sum of angles of the triangle is 180degrees, hence;

9x - 72 + 73x + 11 = 180

82x - 61 = 180

82x = 180 + 61

82x  = 241

Divide both sides by 82

82x/82 = 241/82

<em>x = 2.93</em>

<em>Note that the functions might not be accurate but the same methos should be employed for any function given</em>

7 0
3 years ago
When your high school teacher says “math” what’s your first reaction?
notsponge [240]

Answer:

"I'm not gonna cry because it's too hard I'm not gonna cry because it's too hard I'm not gonna cry because it's too hard I'm not gonna cry because it's too hard I'm not gonna cry because it's too hard.." Thirty minutes in: ಥ_ಥ

5 0
4 years ago
Read 2 more answers
Other questions:
  • I need this ASAP Solve: 2x-10/4= 3x
    12·1 answer
  • Check the month and dollar value that that when placed togther would form a correct ordered pair.
    12·1 answer
  • You are painting a room. After 18 minutes, 64% of the room still needs painted. How long does it take to paint the entire room?
    8·1 answer
  • Solve similar triangles can someone please answer
    10·1 answer
  • PLS HELP ME WITH THHESE I GIVE ALL YALL BRAINLZESS
    10·1 answer
  • PLEASE HELP WITH REWARD BRAINLIEST!!
    8·1 answer
  • Pls help!!! For brainliest!
    12·1 answer
  • From the sum of 2x-y+z and 2y -10, subtract 4x-2y-11​
    15·2 answers
  • Alexis and Tasha challenged each other to a
    9·2 answers
  • Bowl contains 25 balls numbered 1 to 25. A ball is drawn and its number is noted. Without replacing the first ball, another ball
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!