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ivanzaharov [21]
2 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]2 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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MrRissso [65]

Answer:

28

Step-by-step explanation:

I assume the polygon is a trapezoid with parallel bases of 2 yd and 5 yd, and an altitude of 8 yd.

area of trapezoid = (base1 + base2)h/2

area = (2 yd + 5 yd)(8 yd)/2

area = 28 yd²

5 0
2 years ago
What is 3 3/4 - 1 1/4
juin [17]

Answer:

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3 years ago
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2 years ago
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joja [24]

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6 0
2 years ago
several people are sitting evenly spaced around a circular table and the positions are labelled 1, 2 ,3 and so on .The people at
alexandr1967 [171]

12 will be opposite to 24. Then the number of the people are sitting at the table will be 24.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The several people are sitting evenly spaced around a circular table and the positions are labelled 1, 2, 3 and so on.

The people at positions 3 and 15 are directly opposite each other.

Then the number of the people are sitting at the table will be

1 is opposite to 13

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Similarly, 12 will be opposite to 24.

Then the number of the people are sitting at the table will be 24.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ1

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