imayapear4 imayapear4
  • 04-10-2021
  • Mathematics
contestada

a+b=95
4a+1.50b=267.5

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 04-10-2021

9514 1404 393

Answer:

  • a=50
  • b=45

Step-by-step explanation:

We can subtract the second equation from 4 times the first:

  4(a +b) -(4a +1.5b) = 4(95) -(267.5)

  2.5b = 112.5 . . . . . simplify

  b = 45 . . . . . . . . . . divide by 2.5

  a = 95 -b = 50 . . . find 'a'

The solution is (a, b) = (50, 45).

Answer Link

Otras preguntas

I need help on this please​
Find the degree of the monomial. 4b3c6
According to the evolution theory the state begins as a
An ____________ search algorithm tries every possible solution to find an answer.
Who founded Guilford technical community college?
The Quran is the central Religious text of Islam and has been translated into 1. most African, Asian, and European languages. O Religious O Islam O African, Asi
a large amount of world's cold is produced in 1.South Africa2.Dubai 3 Iceland 4 India​
como es el procedimiento de division con decimales 28.8/4
at what value of x does the minimum or maximum occur for the function below?
. What are the challenges faced by same gender families in South Africa​