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ivanzaharov [21]
3 years ago
13

A woman is now 30 years older than her son. 15 years ago, she was twice as old. What are the present ages of the woman and her s

on?
Mathematics
1 answer:
Paladinen [302]3 years ago
8 0

Answer:

75 and 45

Step-by-step explanation:

woman's age= w

son's age= s

--------------

  • w=s+30
  • w-15=(s-15)*2 ⇒ w-15=2s-30 ⇒ w=2s- 15

comparing the two above:

  • s+30=2s-15  ⇒ s= 45 ⇒ w= 75

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120% of a number is 45 find the number
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Vikentia [17]

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