T = varsta tatalui
f = varsta fiului
anul acesta: t = 4 x f
peste 20 de ani: t+20 = 2 x (f+20)
=> 4 x f +20 = 2 x f + 2 x 20
4 x f - 2 x f = 2 x 20 - 20
2 x f = 20
f = 10
anul acesta fiul are 10 ani
peste 5 ani fiul va avea...
0.444 is the answer to the question
Answer:
750 tickets were sold
Step-by-step explanation:
Answer: They both equal the same thing.
Step-by-step explanation: 4/5=0.8
Answer:
yes
Step-by-step explanation:
