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3 years ago

1 What is the value of x in the equation 8x - 5(x - 1) = 20?

Mathematics

1 answer:

fiasKO [112]3 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

1. Expand

8x - 5x + 5 = 20

2. Simplify

3x + 5 = 20

3. Subtract 5 from both sides

3x = 20 - 5

4. Simplify

3x = 15

5. Divide both sides by 3

x = 15/3

6. Simplify

x = 5

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ZanzabumX [31]

Answer:

Step-by-step explanation:

The diagram shows Pascal's triangle. Pascal's triangle is a triangular array of the binomial coefficients.

The entry in the $n^{th}$ row (start counting rows from 0) and $k^{th}$ column (start counting columns from 0) of Pascal's triangle is denoted by

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Coefficient 20 stands in 6th row, then n = 6 and in 3rd column, so k = 3.

Hence,

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3 years ago

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Oduvanchick [21]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

I don’t get this can someone explain this

LekaFEV [45]

Answer:

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Step-by-step explanation:

AB = 6, BC = 3

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AC = $\sqrt{45}$

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