Dr. Irvine saw 130 patients in one week. The ratio of kids to adults that he saw is 3 to 7. If k

represents the number of kids and d represents the number of adults, which system of equations should be set up to find out how many kids Dr. Irvine saw during the week?

We can set up the system of equations as follows:

1) k + d = 130 (since Dr. Irvine saw a total of 130 patients)
2) k/d = 3/7 (since the ratio of kids to adults is 3 to 7)