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svetlana [45]
3 years ago
8

5 years ago, the age of a man was 7 times the age of his son. After five years, the age of the man will be 3 times the age of hi

s son from now. How old are the man and the son now?
Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

10 years

40 years

Step-by-step explanation:

let present ag e of son=x

5 years ago age of son=x-5

5 years ago age of man=7(x-5)=7x-35

present age of man=7x-35+5=7x-30

after 5 years

age of son=x+5

age of man=7x-30+5=7x-25

also 7x-25=3(x+5)

7x-25=3x+15

7x-3x=15+25

4x=40

x=10

age of son=10 years

age of man=7*10-30=70-30=40 years

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The original value of a sculpture is $950, and the value decreases by 15% each year. Find the value of the sculpture in 8 years.
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Answer:

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