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Blababa [14]
3 years ago
5

a silkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their

cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
3 0

Answer:

Possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

Step-by-step explanation:

Let the length of the silk fiber = x yards.

Let the number of silk fibres = a.

It is given that the silk fibers between 3 to 10 yards are combined to form a silk thread of 300 yards.

So, we get the equation,

ax=300, where 3\leq a\leq 10

i.e. x=\frac{300}{a}, 3\leq a\leq 10

So, the possible values of 'a' are 3, 4, 5, 6 an 10.

Thus, the possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

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The manufacturing cost of an air-condioning unit is $544, and the full-replacement extended warranty costs $113. If the manufact
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The answer is
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8 0
4 years ago
Read 2 more answers
Show all work! I don't understand this! Brainleist!<br>I attached a picture this time!
rodikova [14]

Answer:

2.94 seconds.

Step-by-step explanation:

The ball will hit the ground when the height of the ball is 0 meters.

The equation is...

h = 61 - 6t - 5t^2.

-5t^2 - 6t + 61 = 0

5t^2 + 6t - 61 = 0

We can use the quadratic formula to solve.

[please ignore the A-hat; that is a bug]

\frac{-b ± \sqrt{b^2 - 4ac} }{2a}, where a = 5, b = 6, and c = -61.

= \frac{-6 ± \sqrt{6^2 - 4 * 5 * (-61)} }{2 * 5}

= \frac{-6 ± \sqrt{36 - 20 * (-61)} }{10}

= \frac{-6 ± \sqrt{36 + 1,220)} }{10}

= \frac{-6 ± \sqrt{1,256} }{10}

= \frac{-6 ± 35.44009029}{10}

Since time cannot be negative, we will not minus the 35.44009029.

(-6 + 35.44009029) / 10 = 29.44009029 / 10 = 2.944009029

That is approximately 2.94 seconds.

Hope this helps!

8 0
3 years ago
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PLEASE HELP I NEED THE ANSWER BY TODAY! thanks :)
erastova [34]

Answer:

\large\boxed{C.\ \dfrac{7}{2}}

\large\boxed{B.\ \$3,600}

Step-by-step explanation:

orange\ area-35\%\\\\light\ blue\ area-10\%\\\\the\ ratio:\ \dfrac{35}{10}=\dfrac{35:5}{10:5}=\dfrac{7}{2}

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5 0
3 years ago
What's the answer for (0,2)m=4/7
stiv31 [10]

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8 0
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