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...
Answer:
4x+15 Is the answer
Step-by-step explanation:
4(6−2x)−3(3−4x)
Distribute:
=(4)(6)+(4)(−2x)+(−3)(3)+(−3)(−4x)
=24+−8x+−9+12x
Combine Like Terms:
=24+−8x+−9+12x
=(−8x+12x)+(24+−9)
=4x+15
Answer:
A) 60
Step-by-step explanation:
P = 5+5+11+9+(5+11)+(9+5)
P = 60
Answer:
4
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
