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
densk [106]
3 years ago
5

HELP ME PLEASE NEED ANSWER NOWWWWWWWWWW solve the following system of equation. Round your answer to the nearest tenth. Your ans

wer will be in the form (M,N). Find M+N, rounded to the nearest tenth.
5x+2y=21
-2x+6y=-34
Mathematics
1 answer:
dlinn [17]3 years ago
7 0
 
(A) 5x+2y=21
(B) -2x+6y=-34

multiply (A) by - 3→ -15x - 6y = - 63 (C)

Now add (C) to (B):

-15x - 6y = - 63 (C)
-2x + 6y  =-34 (B)
 -----------    --------
-17x         = - 97       and x = 97/17

Now replace x value in any of the equation and you'll find y = - 64/17

1st Answer (97/17 , - 64/17)
2nd Answer : 97/17 + (-64/17) = 97/17 - 64/17 = 33/17 ≈ 2

You might be interested in
M= -(4+m)+2<br> solve for m
Allisa [31]

Answer:

m = -1

Step-by-step explanation:

m = - (4 + m) + 2

m = -4 - m + 2

m = -2 - m

+m       +m

2m = -2

/2      /2

m = -1

Hope this helps!

8 0
3 years ago
Read 2 more answers
The number of students enrolled at a college is 15,000 and grows 4% each year
Kipish [7]

Answer:

15,000

Step-by-step explanation:

initial amount is basically the starting amount

6 0
2 years ago
I'm confused on case 3 sea level
Ratling [72]
Try 488 or 3050 but I think it is most likely 488.
4 0
3 years ago
Help me with hanger math...
andrew11 [14]
The answer is 3 First you subtract 2 from 17 and then you divide 15 by 5 to get the answer of 3
6 0
2 years ago
a fish tank is in the shape of a cube the. volume of the fish tank is 64 cubic feet. What is the area of one face of the fish ta
babymother [125]
16 square feet. The cube root of 64 is 4, which is equal to the length of one side. The area of one side is the length times the width, and since this is a cube, the length equals the width, meaning that the side is 4 times 4 which is 16
3 0
2 years ago
Read 2 more answers
Other questions:
  • V = 5x + 2y<br> X = 3<br> y = -4<br> a) Work out the value of V.
    15·2 answers
  • Which number is the largest? 7.2 ⋅ 10−6, 3.09 ⋅ 103, 2.04 ⋅ 104, 5 ⋅ 103
    6·2 answers
  • Quick mathswatch ASAP Will give brainliest for the person who explains
    15·2 answers
  • animated episodes is 24 minutes long,and each movie is about 2 hours long how many days would it take a superfan to watch every
    6·1 answer
  • What is the volume of a cone with a height of 6 cm in the radius of 2 cm
    7·1 answer
  • of the 75 boys in the 7th grade class, 25 participate in at least one sport . of the 120 girls in 7th grade class 30
    14·1 answer
  • Given △ACP ≅ △LNX, find each missing measure.
    11·1 answer
  • Find the exact value of cos 45º in simplest form with a rational denominator.​
    11·1 answer
  • If Brittany walks 4 miles in 50 minutes, then Brittany will walk how far in 90 minutes if she walks at the same speed the whole
    13·2 answers
  • Dont mind this i just need the achivement
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!