Answer:
width=60 length=540
Step-by-step explanation:
(w+9w)*2=1200
Answer:
Define F as fathers age and S as sons age right now.
Then now they are
(1) 3S = F
and six years ago they were
(2) 5*(S-6) = F-6
calculate 5*(S-6)
5S - 30 = F-6
Subtract left and right side by -F
Add 30 to left and right side
5S - F = 24
Put (2) 3S = F into the equation above
5S - 3S = 24
2S = 24
S = 12
insert result in (2) 3S = F
3*12 = F
36 = F
Step-by-step explanation:
So the son is 12 years, and the father is 36 years.
91.4 * 100 = 9140
68.5 * 100 = 6850
9140 * 6850 = 62609000cm²
Well, you would have to multiply 27 by 9 to get 243, which is the answer.
