The ages of Olivia and her brother are 10 years and 11 years respectively
Let x₁, and x₂ be the ages of Olivia and her brother respectively.
Given that Olivia's brother is twice her age minus 9 years.
⇒ x₂ = 2x₁ - 9 → equation 1
Also given that Olivia's brother is as old as half the sum of the ages of Olivia and both of her 12-year-old twin brothers.
⇒ x₂ = 1/2 × (x₁ + 12) → equation 2
Using equation 1 in equation 2, we get
2x₁ - 9 = 1/2 × (x₁ + 12)
⇒ 4x₁ - 18 = x₁ + 12 (multiplying by 2 on both sides)
⇒ 4x₁ - x₁ = 12 + 18
⇒ 3x₁ = 30
⇒ x₁ = 10 (dividing by 3 on both sides)
Using the value of x₁, in equation 1,
⇒ x₂ = 2(10) - 9
⇒ x₂ = 20 - 9
⇒ x₂ = 11
Therefore the ages of Olivia and her brother are 10 years and 11 years respectively.
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Answer:
{0,6}
Step-by-step explanation:
You need to find all x that belong to A but do not belong to B.
0, 6 are the only ones.
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X^3-3x^2-22x+24
the first option is the answer
solution: (x + 4)(x - 1)(x -6) = (x^2 - x + 4x -4)(x - 6)
(x^2 + 3x -4)(x - 6) = x^3 -6x^2 + 3x^2 - 18x - 4x + 24 = x^3 - 3x^2 - 22x + 24
The answer is 47 no I don’t want thank you
We know 1 meter = 3.28084 feet
So 1 square meter = 3.28084 × 3.28084 square feet.
Now to convert from square feet to square meters, we need to divide by 3.28084 × 3.28084.
The area given in the news paper advertisement is 1330 square feet.
So to convert to square meters we divide by 3.28084 × 3.28084
We get
1330 square feet = 
Hence 1330 square feet of area is equal to 123.56 square meters.
