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Lapatulllka [165]
3 years ago
13

In 8 years, a girl will be 3 years older than twice her present age. How old is she now​

Mathematics
1 answer:
Lisa [10]3 years ago
5 0

Answer:

5

Step-by-step explanation:

You can express this as a system of equations:

x in this instance will be her present age.

x + 8 = 2x + 3

simply solve for x after this by subtracting three and x from both sides, and you’ll find that x is 5.

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antiseptic1488 [7]

Answer:

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Step-by-step explanation:

It is worthwhile memorizing the ratios of legs in a 30°–60°–90° triangle. Shortest to longest, the ratios are ...

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  6 : x = 1 : 2 = 6 : 12

  x = 12

_____

You can also get there using trigonometry.

  cos(60°) = 6/x

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7 0
2 years ago
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Step-by-step explanation:

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8 0
3 years ago
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What is the square root of 108 in simplified radical form?
Alenkinab [10]
\sqrt{108}=\sqrt{36 \times 3}=\sqrt{36} \times \sqrt{3}=6 \times \sqrt{3}=\boxed{6\sqrt{3}}
5 0
3 years ago
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Ket [755]
A) $17.50
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3 0
2 years ago
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mestny [16]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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