mn567787 mn567787
  • 22-09-2018
  • Mathematics
contestada

John who is 20 years old is 8 years older than 2 times the age of Carlos. How old is Carlos

Respuesta :

jimrgrant1 jimrgrant1
  • 22-09-2018

Carlos is 6

let x be Carlo's age then

2x + 8 = 20 → (solve for x)

subtract 8 from both sides

2x = 20 - 8 = 12

divide both sides by 2

x = [tex]\frac{12}{2}[/tex] = 6

Carlos is 6 years old


Answer Link
suspho
suspho suspho
  • 22-09-2018

c = Carlos

j = John

--------------------

2c + 8 = j

2c + 8 = 20

2c = 20 - 8

2c = 12

c = 12 : 2

c = 6

-------------------------

6*2+8=20

Answer Link

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