Answer:
The boy: 8 years old
The sister: 11 years old
Explanation:
We assume that the age at present of the boy is x (years old).
As he is younger than his sister 3 years, so that his sister's present age is great than x 3 years
=> Her present age is: x + 3 (years old)
Two years ago, the boy is younger than present two years
=> The boy's age two years ago is: x - 2 (years old)
Similarly, the sister's age two years ago is: (x+3)-2 = x + 1 (years old)
As given, two years ago he was two-thirds of his sister's age, so that we have:
<em>The boy's age two years ago = </em>
<em> × the sister's age two years ago</em>
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
=> x + 3 = 8 + 3 = 11
So the present age of the boy is 8 years old, of the sister is 11 years old
Answer: barter
Explanation:
Barter is an exchange system whereby money isn't used as the medium of exchange but rather, there's a direct exchange of goods or services.
From the question, we are given the information that Italy agrees to buy 5,000 cars from Comfort Cars Inc. in exchange for 5,000 barrels of oil. This shows that a barter system took place.
Priscilla does not need to consider the cost of the new equipment.
Originally used by the Inuit, kayaks are a sort of canoe with a light frame and a watertight covering that has a tiny space in the top to sit in.
As a type of compact watercraft, kayaks are renowned for their exceptional design. A boat that is quick, strong, and simple to turn may be modified for calm lakes, swift rivers, and rough seas thanks to its light hull, covered top, and shallow base.
Instead of continuing to use her outdated pieces of equipment, Priscilla could swap them out for more modern ones.She shouldn't consider the price of the new equipment as a result.
Click the link to learn more about the kayaks
brainly.com/question/27326576
#SPJ4
Wow, That's tough..... I'll help. 1, A. Income. 2, D. Soil. 3, D. Resources. I hope this helped. :)
