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?
The number of robins that visited the feeder is given by the value of the ratio that represents robins divided by the total ratio times the total number of the birds.
The total ratio is 11; 4 +7
The total number of birds is 132,
The value of the ratio that represents robins is 4
So you will have 4/11 x 132, which is 48 robins.
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