Answer:
y = -3/4 - 12
Step-by-step explanation:
Square of five = 5^2 = 5 x 5 = 25
answer
c) 25
Answer:
28x-35
Step-by-step explanation:
4x*7=28x
5*7=35
Answer:
Step-by-step explanation:
Answer:
34 years
Step-by-step explanation:
f = s + 28 Eq. 1
f+8 = 3(s+8) Eq. 2
f = father age
s = son age
replacing Eq. 1 on Eq. 2
(s+28) + 8 = 3(s+8)
s + 36 = 3*s + 3*8
s + 36 = 3s + 24
36 - 24 = 3s - s
12 = 2s
12/2 = s
s = 6
from the Eq. 1
f = 6 + 28
f = 34
Check
from the Eq. 2
34+8 = 3(6+8)
42 = 3*14
