Try this solution:
rule: Distance=speed * time, where Distance=10216 (mi); t=8 (h) and speed=slower_jet + faster_jet (mi/h);
note, that faster_jet=slower_jet+65 (mi/h). Using these:
(slower_jet+65)*8=10216;
slower_jet=(10216-520)/16;
slower_jet=606 (mi/h);
faster_jet=606+65=671 (mi/h).
answer: <u>606 & 671</u>
3.6 = 3 3/5
(sorry if it's wrong)
Answer: a.) -1 2/3
explanation: -2 1/6 - 1 1/4= -13/6 - 5/4= -41/12 ; 1 3/4= 7/4 ; -41/12 + 7/4= -5/3 ; -5/3= -1 2/3
