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3 years ago

15

Carol bought 500 yards of curling ribbon. She used 1 5/6 yards on a package for her mother and 3 5/8 on a package for her daught

er. How many yards of ribbon did Carol use in all?

1 answer:

NARA [144]3 years ago

7 0

1 5/6 + 3 5/8 = 5 11/24 yards

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Serggg [28]

Answer:

$\frac{15}{17}$

Step-by-step explanation:

$\cos( \alpha ) = \frac{ad}{hip} \\ \\ \sin( \alpha ) = \frac{op}{hip}$

Pythagorean theorem

hip² = op² + ad²

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x² = 17² - 8²

$x \: = \sqrt{{17}^{2} - {8}^{2} } \\ x = \sqrt{289 - 64} \\ x = \sqrt{225} \\ x = 15$

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$\sin( - \alpha ) = \frac{15}{17}$

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Step-by-step explanation:

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Question #2 What is the difference?

e-lub [12.9K]

Answer:

B $\frac{b-10}{b-1}$

Step-by-step explanation:

In order to get the same denominator, we need to multiply the second fraction by (b+2) in the numerator and denominator.

We will end up in something like this : $\frac{b^{2} - 2b - 8 -6(b+2) }{(b-1)(b+2)}$

I just timed the second fraction by b+ 2 and then i added them together.

Therefore, we will get $\frac{b^{2} - 8b - 20}{(b-1)(b-2)}$

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$\frac{(b-10)(b+2)}{(b-1)(b+2)}$

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