2 years ago

Someone plz help with these questions:

Mathematics

1 answer:

egoroff_w [7]2 years ago

5 0

Answer:

48% for number 1

step-by-step explanation :

All you have to do is divide the numerator by the denominator and then multiply that result with 100 like so

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PtichkaEL [24]

Answer:

im pretty sure its 64 if not im so sorry

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

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One month,ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as ruby. Together they worked 126 hours

Misha Larkins [42]

I + 6 = r

4r = s

i + r + s = 126

4i + 24 = 4r

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i = r-6

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2 years ago

Rewrite this radicand as two factors, one of which is a perfect square.

seropon [69]

Answer:

$2 \sqrt{15}$

Step-by-step explanation:

1) rewrite 60 as it's prime factors.

$\sqrt{2 \times 2 \times 3 \times } 5$

2) group the smae prime factors into pairs.

$\sqrt{(2 \times 2)} \times 3 \times 5$

3) Rewrite each pair in exponent form.

$\sqrt{ {2}^{2} \times 3 \times 5 }$

4) use this role:

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

$2 \sqrt{3 \times 5}$

5) Simplify.

$4 \sqrt{15}$

So, therefor, the answer is option 1.

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2 years ago

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