Answer:
9
Step-by-step explanation:
(2)2 + 5 = 4 + 5 = 9
Step-by-step explanation:
let number of brand new busses = x
let number of secound hand busses = y
from first condition
x + y = 20
x = 20 - y
cost of brand new busses = 8000x
cost of scount hand bus = 3500y
8000x + 3500y = 160000
8000( 20 - y ) + 3500y = 106000
160000 - 8000y + 3500y = 106000
-4500y = -54000
y = 12
x = 20 - y
x = 8
Answer:
D
Step-by-step explanation:
I'm not entirely sure if I'm correct but from what I gathered I'm pretty sure it's D.
Answer:7
Step-by-step explanation:
21=42-3r
21-42=3r
-21=3r
r=7
1/4=2/8
3/8-2/8=1/8
1/8 of a hour remains on the flight. ✈️