tjnh6590 tjnh6590
  • 08-11-2017
  • Mathematics
contestada

One number is 3 more than twice another. the sum of the numbers is 18. find the two numbers.

Respuesta :

rshafi rshafi
  • 10-11-2017

[tex]x = 3 + 2y[/tex]
[tex]x + y = 18[/tex]
The second equation can be modified to:
[tex]x = 18 - y[/tex]
[tex]3 + 2y = 18 - y[/tex]
[tex]3y = 15[/tex]
[tex]y = 5[/tex]
Plug y in to any of the first two equations, and you get:
[tex]x = 13[/tex]
Answer Link

Otras preguntas

Please help I don’t know what it is I’ll give lots of pointssss.
Better Buy When comparing can use 6 OZ LOW FAT YOGURT UNIT PRICE $0.12 per os RETAIL PRICE $0.72 items you want to buy, you to find the best deal, XXX Wa 32 OZ
Please help Solve for x. Show each step of the solution. 2.54-x+12=21-42.5x+7
i wandered lonely as a cloud Poetry Analysis Essay i need help for the introduction
What is a way that humans have responded to the lack of living space in cities from overcrowding? A. By making more land such as islands for people to live on.
Kinda political questions
^3…square root of 2 times (-7-3)
Which of the following do not play a role in intracellular movement? a. microfilaments and intermediate filaments b. only intermediate filaments. c. intermedia
How would you change the Articles to help the government respond? Help pls
In a laboratory experiment, a student was exploring the stretch of a spring based on the pull of the force. The student used weights of 1 N, 2 N, 3 N, 4 N, and