-625
use long multiplication to evaluate .
Here, the number is = 9/15/18
We can re-write it as: 9 /15*18 = 9/270 = 1/30
In short, Your Answer would be 1/30
Hope this helps!
Total people x,
then, 3.5x + 5.5x + 6 = 51
simplify, 9x +6 = 51
subtract 6 on both sides, 9x= 45
divide by 9 on both sides, x= 5
therefore, total 5 people in the family.
Vicky’s average speed is 0.55m/h
