Respuesta :
Assume x = goblins, y = wizards
x = y x 120%
x + y = 220
Substitute x = y x 120% into the equation
[tex]y \times 120\% + y = 220 \\ \frac{120y}{100} + y = 220 \\ 1.2y + y = 220 \\ 2.2y = 220 \\ y = 100[/tex]
Substitute y = 100 into equation
[tex]x = 100 \times 120\% \\ x = 100 \times \frac{120}{100} \\ x = 120[/tex]
There are 120 goblins in the magic club.
Hope this helps. - M
x = y x 120%
x + y = 220
Substitute x = y x 120% into the equation
[tex]y \times 120\% + y = 220 \\ \frac{120y}{100} + y = 220 \\ 1.2y + y = 220 \\ 2.2y = 220 \\ y = 100[/tex]
Substitute y = 100 into equation
[tex]x = 100 \times 120\% \\ x = 100 \times \frac{120}{100} \\ x = 120[/tex]
There are 120 goblins in the magic club.
Hope this helps. - M
