SOLUTION: Maria, Amy, and Sadie share food expenses. Amy pays $10 a month less than Maria. Sadie pays twice as much as Amy. If the monthly bill is $310, how much does each person pay?

Algebra ->  Equations -> SOLUTION: Maria, Amy, and Sadie share food expenses. Amy pays $10 a month less than Maria. Sadie pays twice as much as Amy. If the monthly bill is $310, how much does each person pay?       Log On


   

Question 1099603: Maria, Amy, and Sadie share food expenses. Amy pays $10 a month less than Maria. Sadie pays twice as much as Amy. If the monthly bill is $310, how much does each person pay?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
Maria + Amy    + Sadie    = 310   dollars,

M     + (M-10) + 2*(M-10) = 310  ====>


M + M - 10 + 2M - 20 = 310  ====>  4M = 340  ====>  M = 340%2F4 = 85.


Answer.  Maria pays $85,  Amy $75,  Sadie $150.