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kenny6666 [7]
4 years ago
10

She buys 5 pieces of fabric. Each piece of fabric is 1 7/10 yards long. What is the total length of the fabric she buys?

Mathematics
1 answer:
DiKsa [7]4 years ago
6 0
Just multiply 5 by 1 7/10 and get 8 1/2
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Yanka [14]

Answer:

The answer is

<h2>10 \sqrt{7}</h2>

Step-by-step explanation:

To solve the radicals make sure that they both have the same radical

That's

<h3>4 \sqrt{7}  + 3 \sqrt{28}</h3>

Simplify 3√28 in order to combine the radicals

We have

<h3>3 \sqrt{4 \times 7}  = 3 \times  \sqrt{4}  \times  \sqrt{7}</h3><h3>= 3 \times 2 \times  \sqrt{7}</h3><h3>= 6 \sqrt{7}</h3>

So we now have

<h3>4 \sqrt{7}  + 6 \sqrt{7}</h3>

Using the rules of surds

That's

<h3>x \sqrt{a }  + y \sqrt{a}  = (x + y) \sqrt{a}</h3>

Simplify the expression

We have

<h3>4 \sqrt{7}  + 6 \sqrt{7 }  = (4 + 6) \sqrt{7}</h3>

We have the final answer as

<h3>10 \sqrt{7}</h3>

Hope this helps you

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