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3 years ago

11

Can anybody help me?

1 answer:

lakkis [162]3 years ago

8 0

You know that 6x+3 equals 45 because the two sides are equal. So you first put the equation 6x+3=45. Then you use the subtraction property of equality and subtract 3 from both sides. This gives you 6x=42. Then you divide 6 from both sides to get you final answer, x=7

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What is 5√28 + √63 in simplest radical form? <br> PLEASE HELP ME!

Harrizon [31]

$\bf 5\sqrt{28}+\sqrt{63}~~ \begin{cases} 28=2\cdot 2\cdot 7\\ \qquad 2^2\cdot 7\\ 63=3\cdot 3\cdot 7\\ \qquad 3^2\cdot 7 \end{cases}\implies 5\sqrt{2^2\cdot 7}+\sqrt{3^2\cdot 7} \\\\\\ 10\sqrt{7}+3\sqrt{7}\implies \stackrel{\textit{adding like-terms}}{13\sqrt{7}}$

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3 years ago

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larisa [96]

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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Mnenie [13.5K]

Answer:

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Step-by-step explanation:

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3 years ago

2. On a blueprint for a new building, 2 inches = 8 feet. The height of the building on the

dimulka [17.4K]

<h2>Answer:</h2><h2>The actual height of the building = 36 feet.</h2>

Step-by-step explanation:

By blue print conversion,

2 inches = 8 feet

Therefore, 1 inch = $\frac{8}{2}$ = 4 feet

1 inch = 4 feet

The height of the building on the blueprint = 9 inches

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4 0

3 years ago