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Helga [31]
3 years ago
14

Which best proves why the expressions 4(x+3)+2x and 6(x+2 must be equivalent expressions

Mathematics
1 answer:
ahrayia [7]3 years ago
5 0

Answer:

6x + 12 = 6x + 12

Explanation:

4(x + 3) + 2x

4x + 12 + 2x    Distribute 4.

6x + 12            Combine the like terms.

6(x + 2)          

6x + 12            Distribute 6

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BC = 4x + 2 AB = 8x + 8 and AC = 22 Find BC
Scilla [17]

Answer:

BC = 6.8

Step-by-step explanation:

The distance from A to B, then from B to C, is the same distance as from A to C.

Thus,

AB + BC = AC

AB = 8x + 8

BC = 4x + 2

AC = 22

AB + BC = AC

(8x + 8) + (4x + 2) = 22

Expanding the parenthesis:

8x + 8 + 4x + 2 = 22

8x + 4x + 8 + 2 = 22

12x + 12 = 22

Subtracting 12 from both sides:

12x = 10

Dividing both sides by 12:

x = 10/12 = 1.2

x = 1.2

We're looking for BC. As we know,

BC = 4x + 2

Let's now put in x = 1.2 into this equation:

BC = 4x + 2

BC = 4 * 1.2 + 2

Since 4 * 1.2 is 4.8:

BC = 4.8 + 2

BC = 6.8

Answer: BC = 6.8

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3 years ago
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Given that €1 =£0.72 a) how much is €410 b) what is the £ to € exchange rate ?
nekit [7.7K]

Answer:

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Please help i've been stuck on these for a bit now!
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Answer:

Q6. D

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Note that we do not change the inequality sign unless we are dividing the whole thing by -1.

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Measures of minor arcs equal measures of inscribed angles.<br> true or false?
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