87=(T1+T2+T3+T4+T+T6)/6
87=(93+87+82+86+x+(x-4))/6
87*6=93+87+82+86+2x-4
87*6=344+2x
178=2x
89=x implies 85, 89
Answer:
200*34=6800
Step-by-step explanation:
Write the possible combinations like
200*34
200*43
300*24
300*42
400*32
400*23
then you chose what will give you 6800 as the answer
Answer:
A, the solutions are x=3,2
Step-by-step explanation:
D2 - d + 4d = d2 - 8d
d2 + 3d = d2 - 8d
d2 - d2 = - 8d - 3d
0 = - 11d
