Answer:
72 hours
Step-by-step explanation:
Rate =Distance / Time
Rate=400/18=22.222
Time=Distance/ Rate
Time= (1600 x 18)/400 = 72hours
3 days
as it took 18 hours to complete 400 km and 1600 divide by 4 is four so we multiply 18 by four and get 72 which is 3 days
22 days
55 divided by 2.5=22 days
(83 + 83 + 91 + 89)/4
= 346/4
= 86.5
10
multiply 15 by the numerator (2) so you should have 30/3 then divide by the denominator (3) for an answer of 10
