Mathematics, 21.03.2020 09:46 2sally2

A 680 m wire is cut into three pieces. The second piece is 4 times as long as the first. The third piece is 3 times as long as the second. How long is each piece?

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Answer from: nila173

40 meter, 160 meter and 480 meter.

Step-by-step explanation:

Given:

A 680 m wire is cut into three pieces.

The second piece is 4 times as long as the first

The third piece is 3 times as long as the second

Question asked:

How long is each piece?

Solution:

Let length of first piece of wire =

Then, length of second piece of wire =

Then, length of third piece of wire = $3\times4x=12x$

As a 680 m wire is cut into three pieces:

$x+4x+12x=680\\17x=680$

By dividing both sides by 17

x=40

Now,

The length of first piece of wire = = 40 meter

Length of second piece of wire = = $4\times40=160\ meter$

Length of third piece of wire = $12x=12\times40=480\ meter$

Therefore, length of first, second and third pieces of wire are 40 meter, 160 meter and 480 meter respectively.

Answer from: Quest

It would be 18 cm

Answer from: Quest

"it's not the heat, it's the humidity". that's a partly valid phrase you may have heard in the summer, but it's actually both. the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. this has important considerations for the human body's comfort. when the body gets too hot, it begins to perspire or sweat to cool itself off. if the perspiration is not able to evaporate, the body cannot regulate its temperature. evaporation is a cooling process. when perspiration is evaporated off the body, it effectively reduces the body's temperature. when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases. in other words, the human body feels warmer in humid conditions. the opposite is true when the relative humidity decreases because the rate of perspiration increases. the body actually feels cooler in arid conditions. there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

75% of the temperatures are below what value? how do you know? 75% of the temperatures are above w

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