Matt
Active Member
width = W
length = L
perimeter = 2W + 2L (by definition)
L = 2W - 20
2W + 2L = 260
2W + 2(2W-20) = 260
2W + 4W - 40 = 260
6W = 300
W = 50 <- width
recall that 2W + 2L = 260
2(50) + 2L = 260
100 + 2L = 260
2L = 160
L = 80 <- length
Thanks! I actually just got that one.
Up for another?
"A theater has orchestra tix for $10, box sts for #7, and balcony seats for 5$. For 1 performance, 360 tix were sold and total revenue = 3080. If the # of orcho tix sold was that of the other types combined, how many of each type of ticket was sold?"