SOLUTION: "The ratio of robins to blackbirds that visit our feeder is 4 to 7. If there are a total of 132 birds, how many robins visit the feeder?" Im not sure how to solve this. Please

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: "The ratio of robins to blackbirds that visit our feeder is 4 to 7. If there are a total of 132 birds, how many robins visit the feeder?" Im not sure how to solve this. Please       Log On


   



Question 189222: "The ratio of robins to blackbirds that visit our feeder is 4 to 7. If there are a total of 132 birds, how many robins visit the feeder?"
Im not sure how to solve this. Please help.
Thank you ^_^

Answer by jonvaliente(64) About Me  (Show Source):
You can put this solution on YOUR website!
The number of robins is 4/11 of total no of birds
The number of blackbirds is 7/11 of total no of birds
so,
4%2F11 of 132 = 48 robins
132-48=84 blackbirds