naddyrock naddyrock
  • 17-12-2016
  • Mathematics
contestada

A x 4 = E
B ÷ 4 = E
C + 4 = E
D - 4  = E
___________
& A + B + C + D = 100

Challenge
*what is the value of E ?*

Respuesta :

texaschic101
texaschic101 texaschic101
  • 17-12-2016
A * 4 = E........A = E / 4
B / 4 = E........B = 4E
C + 4 = E......C = E - 4
D - 4 = E.......D = E + 4

A + B + C + D = 100
(E/4) + (4E) + (E - 4) + (E + 4) = 100
E/4 + 6E = 100 ....multiply by 4
E + 24E = 400
25E = 400
E = 400/25
E = 16 <===


Answer Link

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