Answer:
$42.40
Step-by-step explanation:
The horizontal axis is in fractions.
The three lightest are two pounds & one pounds. Each cost $4.40 per pound.
So cost = 4.40(5/8+5/8+6/8) = $8.8
Remaining costs 4.80 per pound. We add up the remaining and multiply by 4.80 to get their cost.
cost =
Hence, total cost = 8.8 + 33.6 = $42.40
Answer:
economy class = 260
business class = 100.
Step-by-step explanation:
for every 13 economy seats, there are 5 business class seats
EC = 13
BC = 5
ADD to get total = 18
divide 360 by 18 to get the number of groups created.
you get 20.
multiply 20 by each class seats
13 by 20 = 260
5 by 20 = 100
you can confirm by adding the seats to see if you will get 360.
38 rounds to 40.
29 rounds to 30.
40 x 30 = 120.