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3 years ago

Dyahnzskft - GMEEET C0DEGIRLSSSSSSS❤️❤️❤️❤️

Mathematics

1 answer:

Kazeer [188]3 years ago

3 0

Answer:

I just want points

Step-by-step explanation:

Sorry lol

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If the crane operator works 30 years and the train engineer works 33 years, who makes the most lifetime income? How much more?

antiseptic1488 [7]

Answer:

The train eingineer.

Step-by-step explanation:

So, to find the lifetime income, we must multiply the annual income by the years of work.

So for the cran operator:

54,830*30

1,644,900

Now lets compare this to the train eingineer:

50,610*33

1,670,130

So looking at the two numbers:

<u>1,670,130(train eingineer)</u>>1,644,900(crane operator)

So the trian eignineer makes more than the crane operator.

Now lets find the amount.

To do this, lets subtract the larger value by the smaller value:

1,670,130-1,644,900

<u>25,230</u>

So the train eingineer made 25,230 more dollars than the crane operator.

Hope this helps!

3 0

3 years ago

Which is more heavy a pound of bricks or a pound of feathers

jekas [21]

Answer:

they are the same weight, a pound

5 0

3 years ago

Найдите корни уранения |t|:6=4

stiv31 [10]

I think the answer will be t=2/3 or t= -2/3

3 0

4 years ago

If a fire is burning a building and it takes 2 hours to put it out using 2000 gal./min., what minimum diameter cylindrical tank

strojnjashka [21]

Answer:

The minimum diameter of the cylindrical tank needed to store the quantity needed to put out the fire is approximately 58.415 feet.

Step-by-step explanation:

A gallon equals 0.134 cubic feet. First, we determine the amount of water ( $Q$ ), measured in cubic feet, needed to put out the fire under the assumption that water is consumed at constant rate:

$Q = \dot Q \cdot \Delta t$ (1)

Where:

$\dot Q$ - Volume rate, measured in feet per minute.

$\Delta t$ - Time, measured in minutes.

If we know that $\dot Q = 2000\,\frac{gal}{min}$ and $\Delta t = 120\,min$ , then the amount of water is:

$Q = \left(2000\,\frac{gal}{min} \right)\cdot (120\,min) \cdot \left(0.134\,\frac{ft^{3}}{gal} \right)$

$Q = 32160\,ft^{3}$

And the diameter of the cylindrical tank based on the capacity found above is determined by volume formula for a cylinder:

$Q = \frac{\pi}{4}\cdot D^{2}\cdot h$ (2)

Where:

$D$ - Diameter, measured in feet.

$h$ - Height, measured in feet.

If we know that $Q = 32160\,ft^{3}$ and $h = 12\,ft$ , then the minimum diameter is:

$D^{2} = \frac{4\cdot Q}{\pi\cdot h}$

$D = 2\cdot \sqrt{\frac{Q}{\pi\cdot h} }$

$D = 2\cdot \sqrt{\frac{32160\,ft^{3}}{\pi\cdot (12\,ft)} }$

$D \approx 58.415\,ft$

The minimum diameter of the cylindrical tank needed to store the quantity needed to put out the fire is approximately 58.415 feet.

8 0

3 years ago

If a plane can travel 500 miles per hour with the wind and 400 miles per hour against the wind, find the speed of the wind and t

OLga [1]

Wind speed is 50 mph

8 0

3 years ago

Dyahnzskft - GMEEET C0DEGIRLSSSSSSS❤️❤️❤️❤️​​

Dyahnzskft - GMEEET C0DEGIRLSSSSSSS❤️❤️❤️❤️