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
poizon [28]
3 years ago
10

I'm in algebra please help and explain with work

Mathematics
1 answer:
lidiya [134]3 years ago
5 0
2x+4y=0
3x+y=10
So what we want to do is get y onto one side by itself using whatever equation you like.
So I'm taking 2x+4y=0 and subtracting 4y from both sides
So we end up with
2x=4y
Divide both sides by four
2/4x is 1/2 x
So we get 1/2x=y
Take this and plug it into the other equation
3x+y=10
3x+1/2x=10
Add your like terms
3 1/2x=10
Putting 3 1/2 as a mixed number we get 7/2
So..
7/2x=10
Multiply by the opposite of 7/2 on both sides
Which is 2/7 this will cancel out the left side.
So we end up with
X= 10•2/7
X=20/7
Which is 2 and 6/7 as a mixed number.

You might be interested in
Find the unit rate.<br> 5/8 ounce per 1/4 pint
Katena32 [7]

Answer: 2.5 ounces/ pint

You can firstly turn your fractions into decimals 5/8 is equal to .625 and 1/4 is .25

Then you can divide .625 by .25 which is 2.5, So the unit rate is 2.5 ounces per pint.

4 0
3 years ago
The equations of three lines are given below.
Yuliya22 [10]

Step-by-step explanation:

line 1 and 2 : parallel

as line 2 is actually

6x + 2y = 8

2y = -6x + 8

y = -3x + 4

so, they have the same slope (factor of x).

line 1 and 3 : neither

the slopes -3 and 3 are not parallel not perpendicular (90°).

line 2 and 3 : neither

as line 2 is parallel to line 1, it has the same relationship to line 3 as line 1.

6 0
1 year ago
(pts) What are the next three numbers in the pattern: 2, -4, 6, -8, 10. <br> Thanks!
Serhud [2]

Answer and Step-by-step explanation

\huge\boxed{-12, 14, -16}

2, -4, 6, -8, 10, -12, 14, -16

These are the next three numbers in the pattern :-12, 14, -16

4 0
3 years ago
Read 2 more answers
A quarterback throws a football to a teammate. The football is 6.5ft above the ground when it leaves the quarterback's hand. His
Elena-2011 [213]

Answer:

v=5.42m/s

Step-by-Step Explanation:

We can use conservation of energy to solve this  

mgh=1/2mv^2

2gh=v^2

v=sqrt(2gh)

v=sqrt[2*9.8m/s^2*(6.5-5)]

v=5.42m/s

7 0
3 years ago
Read 2 more answers
Your bakery is in a large shopping center. The entire shopping center is 4,500 square feet. Your bakery takes up only 1/10 of th
MissTica
Your bakery is 450 square ft/////this is because you have to do 4,500•1/10
6 0
3 years ago
Read 2 more answers
Other questions:
  • After reading 80\%80% of her e-mails in her inbox, Danette still has MM unread e-mails.
    9·1 answer
  • Someone help, it’s 3:00 am and I gotta get this done and I’m so tired just someone help me, please.
    15·1 answer
  • Four-fifths of a number<br> decreased by eight is four.<br> Find the number.
    15·2 answers
  • Why is renting sometimes considered “throwing money away”?
    10·2 answers
  • Let u solve cu = 0. Show that any derivative, say w = uxt, also solves cw = 0. In cu = 0, u = u(t, x) do the change of variables
    14·1 answer
  • Someone help pleaaaaseeeeee
    7·1 answer
  • A 24-foot ladder leans against a building. The foot
    9·1 answer
  • 2x + y = 3
    5·1 answer
  • Tom goes on hoilday south africa
    6·2 answers
  • Find the point at which the line x = 5 − t, y = 2 + t, z = 3t intersects the plane x − y + 4z = 13.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!