hdfysdjsfu1235 hdfysdjsfu1235
  • 02-06-2018
  • Mathematics
contestada

One year ago liz was three times as old as her brother jack. in two years she'll be only twice as old as jack. how old are liz and jack now?

Respuesta :

a3541649783 a3541649783
  • 02-06-2018
now she is x,one year ago,she is x-1,he is 1/3(x-1),in two years,she is x+2,he is 1/2(x+2)
we can get
1/3(x-1)+3=1/2(x+2)
x=10
Answer Link

Otras preguntas

Police and fire protection Georgia
Inequality for thirty is no greater than the sum of a number and -8
f(x) = 4x - 8 what is the value of f^-1(-2)?
what is characteristic of grendel that is mentioned in the story
find the slope of the line that passes through the points (2,-5) and (7,1)
solve the quadratic equation below by completing the square 4n^2-16n-21=44 The solutions to the equation, in order from least to greatest, are n=____ and n
which of the following is not considered a basic food groupdairy grain oils protien foods
To insert text in the background of a page, users should use a _____. page color watermark page border style
What are the common compounds of argon
Your abuela has written you a letter back and asked you a few specific questions. Answer her questions with complete sentences. 1. ¿Qué tienes que hacer hoy?