On average the ratio of sparrows to doves who come to Jenn's birdbath is 7 to 8. On Tuesday 45 birds came to bathe. How many sparrows and how many doves came

On average the ratio of sparrows to doves who come to Jenn's birdbath is 7 to 8. On Tuesday 45 birds came to bathe. How many sparrows and how many doves came to bathe that day?

 

7/8 ratio of sparrows to doves, but

7/(7+8) X 45=21 sparrows, and

8/(7+8) X 45=24 doves