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2 years ago

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sara is working on a project for her sewing class. she is making a stuffed pair of dice. how much material will she need to buy

if each edge has a measurement of 0.5 yards? what formula will help answer the question?

1 answer:

Korvikt [17]2 years ago

5 0

Answer:

Step-by-step explanation:

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The digits of a two-digit number differ by 3. If the digits are interchanged, and the resulting number is added to the original

Zanzabum

Answer:

The original number could be 85.

Step-by-step explanation:

Let the 2 digits be x and y.

Let the number be xy then, assuming that x is the larger digit:

x - y = 3.

x = y + 3

Also

10y + x + 10x + y = 143

Substituting for x:

10y + y + 3 + 10(y + 3) + y = 143

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22y = 110

y = 5.

So x = y + 3 = 8.

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I've got three photos for the answers but they don't include 31 or 32.

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2 years ago

What's is the square root of 63

QveST [7]

You want to be finding out what two factors (where one of them is a perfect square) has the produce of 63. It seems like 9 x 7 (9 is the perfect square) works.

$\sqrt{63} = \sqrt{9 \times 7} = \sqrt{9} \times \sqrt{7}$

The square root of 9 is 3 so we can just have $3 \sqrt{7}$ (which just means 3 times the square root of 7).

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