The product of the ages of a man and his son is 160. In four years time, the man will be four times as old as his son. Find thei
r ages.
2 answers:
Answer:
father = 32 s = 5 y/o
Step-by-step explanation:
f s = 160 ====> s = 160/f
f+4 = 4 ( s+4)
f + 4 = 4 (160/f +4)
f + 4 = 640/f + 16
f^2 + 4f = 640 + 16 f
f^2 -12f - 640 = 0 Use Quadratic formula to find f = 32 then s = 5
Father is 32 and the son is 5 years old.
You might be interested in
Based on limited information, it can only be inferred that angle give is either 160 degrees or 20 degrees.
A. 2.8x+3
B. -73/156
C. 6 10/21+ 10 6/7
D is already simplified
Answer:
you can plug it into a graphing calcuator right? or no
Step-by-step explanation:
0.4 * x = 68
x = 68/0.4
x = 170
check:
0.4 * 170 = 68
Answer:
whats the question..?
Step-by-step explanation:
