Solution: Find the relationship between the coach class seat and the first class seat. Then solve for the unknown.
First class seat = x
Coach class seat = 6x + 5
x + 6x + 5 = 152
7x = 147
x = 21 <======== number of first class seats
6x + 5 = 6 x 21 + 5 = 131 <======== number of coach class seats
Answer:
7212960
Step-by-step explanation:
You have to round up since the number in the ones place is a 5.
Answer:3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93
You gotta count I did this quick