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
Romashka-Z-Leto [24]
4 years ago
5

The sum of two numbers is 12. The first number,x, is twice the second number ,y,

Mathematics
1 answer:
vlada-n [284]4 years ago
3 0
Judging by the question at hand I generated this equation.
x+y=12
x=2y

I begin this question by plugging in the x=2y into the equation for x. 
So the new equation should be 3y=12. I then divide the entire equation by 3 to get y=4.

Next I plug y=4 into the equation, the new equation should be x+4=12. I then subtract 4 from both sides to get x=8.

The two numbers are :
x=8 y=4
You might be interested in
Convenient store sells prepaid mobile phones a purchase of them for $12 each and uses a markup rate of 250% what is the markup r
kozerog [31]
250%=2.5

Explanation: it just does
4 0
3 years ago
Q # 13. please help to solve this
True [87]
To solve this problem you must apply the fomrula for calculate the area of a cylinder, which is shown below:
 A=2πrh+2πr^2
 Where r is the radius and h is the height of the cylinder
 You have that r=15.1 inches and h=12.8 inches, then:
 A=2πrh+2r^2
 A=2π(15.1 in)(12.8 in)+2π(15.1 in)^2 
 A=2647 in^2
 The answer is 2647 in^2
3 0
4 years ago
Solve the equations. 2.5x−3.67=1.52
aleksklad [387]
Our current equation is:
2.5x -3.67 = 1.52.
To solve for x, we need to get x by itself and then simplify what we can from there.
2.5x -3.67 = 1.52
Add 3.67 to both sides to get 2.5x by itself.
2.5x = 5.19 is now our new equation.
Divide both sides by 2.5 to get x.
5.19/2.5 = 2.07
x = 2.07
I hope this helps!
5 0
3 years ago
Corresponding solution for 3x-3(x+1)=3 plzzz answer quickly ​
Gekata [30.6K]
3x - 3(x + 1) = 3 \\ = > - 3(x + 1) = 3 - 3x \\ = > - 3(x + 1) = - 3(1 + x) \\

Hence,

x is cutting each other in this equation.

So, x can be of any value.i.e.,infinite.

Hope this will help you. 

If you like my answer. Please mark it as brainliest  And  Be my follower if possible.
6 0
4 years ago
Order them from least to greatest
ella [17]
8/3, 30/7, 40/9, 21/4
7 0
3 years ago
Read 2 more answers
Other questions:
  • Quincy bought a variety-pack that
    13·2 answers
  • This ten frame show 5+8 draw to make ten then write the new fact
    15·1 answer
  • Dr. Hoover, a pediatrician, has 3 annual checkups and 2 sick visits scheduled next Tuesday,
    12·1 answer
  • Rewrite Ohm's law, V = lR to solve for the current, l, and then use the formula to find the current when the voltage is 0.6 volt
    7·1 answer
  • 12 more than m machines
    9·1 answer
  • A b c or d for Brainiest answer
    9·1 answer
  • A camera is accidentally dropped from a helicopter at a height of 4,096 ft. If the equation for height as a function of time is
    14·2 answers
  • What are all the factors of 24 that are positive
    14·2 answers
  • I need to know what R + 3 =3
    7·2 answers
  • What is 180.2 rounded to the nearest hundred
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!