2 years ago

Silvia is n years old. She has a twin sister. What is the total of their ages?

Mathematics

1 answer:

natka813 [3]2 years ago

8 0

Answer: 2n

Step-by-step explanation:

Silvia is n, sister is n, total is n+n=2n.

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tiny-mole [99]

Replace x with 2 and solve each equation:

1/2(2) + 4 = 1 + 4 = 5

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The answer is:

both expressions equal 5 when substituting 2 for x because the expressions are equivalent.

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2 years ago

Kirsten has 9 syrup containers from a local cafe. There are 6 milliliters of syrup per container.

ololo11 [35]

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3 years ago

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2x(6x^2 + 3x - 1)<br><br> Simplify

likoan [24]

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2 years ago

Saira is using the formula for the area of a circle to determine the value of LaTeX: \piπ. She is using the expression LaTeX: Ar

lord [1]

Given:

Area of a circle, A=50.265 sq. units.

Radius of circle, r = 4 units.

To find:

The value of π to the nearest thousandth.

Solution:

Formula for area of a circle is

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$\dfrac{A}{r^2}=\pi$

$Ar^{-2}=\pi$

Now, using $Ar^{-2}$ expression, we can find the value of π.

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2 years ago