Question 614387
A)  d = rows in "Dress Circle" ; b = rows in bleachers
___ d = b + 10
___ 40d + 70b = 7000 ___4d + 7b = 700


b) substituting ___ 4(b + 10) + 7b = 700 ___ 11b = 660 ___ b = 60
___ substituting ___ d = (60) + 10 = 70


d seats = 40 * 70 = 2800
b seats = 60 * 70 = 4200


d) total receipts = 2800($150) + 4200($60)