Open Question: can you please check and correct my 2 math problems?

17:56 Publicado por Flechado16

Let z = the number of zebras and n = number of neons

then, for 9, z + n = 13 ==> n = 13 - z
also, 2.1z + 1.85n = 25.8 ==> 2.1z +1.85(13 - z) = 25.8
==> z(2.1 - 1.85) = 25.8 - 24.05 ==> 0.25z = 1.75 ==> z/4 = 7/4
==> z = 7 and n = 6

Similarly for the other


View the original article here

  • Digg
  • del.icio.us
  • StumbleUpon
  • Yahoo! Buzz
  • Technorati
  • Facebook
  • TwitThis
  • MySpace
  • LinkedIn
  • Live
  • Google
  • Reddit
  • Sphinn
  • Propeller
  • Slashdot
  • Netvibes

0 comentarios:

Publicar un comentario