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AleksAgata [21]
3 years ago
7

Alex draws the scale model shown as a plan for a large wall mosaic. 10 cm 12 cm

Mathematics
1 answer:
miskamm [114]3 years ago
7 0

Answer: a

Step-by-step explanation:

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2X+4=20+5X<br>A)1/2 B)-1/2 C)2 D)-2​
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It seems that your options aren't correct as the right answer is -5.3333... (recurring)

Step-by-step explanation:

1)  2x + 4 = 20 + 5x   (subtract by the smallest unknown)

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4) -5.33333... = x

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7 0
3 years ago
(Correct answer only please)
andriy [413]

Answer: Choice A)  Add 3.8 to both sides of the equation

Explanation:

If we knew the value of w, then we would replace it and apply PEMDAS.

However, we don't know the value of w, so we undo each step of PEMDAS going backwards.

We start with the "S" of PEMDAS, and undo the subtraction. To undo subtraction, you apply addition. To undo that "minus 3.8" we add 3.8 to both sides.

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Answer:

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Step-by-step explanation:

a² + b² = c²

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x² = 169 - 144

x² = 25

\sqrt{x^2} =\sqrt{25}

x = 5

3 0
3 years ago
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