The total number of couples attending the banquet was 52.
Step-by-step explanation:
Given that a school reserved a banquet hall for the spring dance, and that, in addition to a $ 100 deposit, each couple must pay $ 20, to determine the total number of couples attending if the total cost of the banquet hall was $ 1,140 is due perform the following calculation:
100 + (20 x X) = 1140
20X = 1140 - 100
X = 1040/20
X = 52
Thus, the total number of couples attending the banquet was 52.
Consecutive even integers are 2 apart they are x,x+2,x+4 total sum is 60 x+x+2+x+4=60 3x+6=60 minus 6 both sides 3x=54 divide both sides by 3 x=18 x+2=20 x+4=22
