Respuesta :
Lia=L
Phil=12.80+L
Cam=3L
L+12.80+L+3L=200.30
5L+12.80=200.30
5L=200.30-12.80
5L=187.5
L=187.5/5
Plug into the equations at the top
L=Lia=$37.5
Phil=12.80+37.5=$50.30
Cam=3(37.5)=$112.50
Phil=12.80+L
Cam=3L
L+12.80+L+3L=200.30
5L+12.80=200.30
5L=200.30-12.80
5L=187.5
L=187.5/5
Plug into the equations at the top
L=Lia=$37.5
Phil=12.80+37.5=$50.30
Cam=3(37.5)=$112.50
Lia:$37.50
Phil:$50.30
Cam:$112.50
First you make a chart with all the people and total. Lia is x, Cam is 3x, and Phil is x+12.80. Then you make an equation: x+x+12.80+3x=200.30. Then you solve for x.
Phil:$50.30
Cam:$112.50
First you make a chart with all the people and total. Lia is x, Cam is 3x, and Phil is x+12.80. Then you make an equation: x+x+12.80+3x=200.30. Then you solve for x.