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2 years ago

71kg as a fraction of 2 tonnes

Mathematics

1 answer:

Anna11 [10]2 years ago

5 0

Answer:

71/2000

Step-by-step explanation:

Recall that 1 tonne = 1000 kg

In other words, to convert from tonnes to Kg, multiply the quantity in tonnes by 1000. Going by the above,

2 tonnes = 2 * 1000

= 2000 kg

As such, 71 kg as a fraction of 2 tonnes will be

= 71/2000

This will have no unit as the two quantities are in Kg.

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jeka57 [31]

Answer:

<h2>The right answer is 415.4 cubic feet.</h2>

Step-by-step explanation:

As you can observe in the image attached, the composite figure is formed by a square prism and a pyramid on top.

We need to find the volum of each part separately.

<h3> Square prism.</h3>

$V_{prims}=11 \times 11 \times 2=242 \ ft^{3}$

<h3>Square pyramid.</h3>

First, we need to find the height of the pyramid. We already know the height of each triangular face of the pyramid, which divides equally the side.

Let's use Pythagorean's Theorem to find the height of the pyramid.

$7^{2}=h^{2} +(5.5)^{2}\\ 49-30.25=h^{2}\\ h=\sqrt{18.75} \approx 4.3$

The height is 4.3 feet, approximately.

Now, we find the volume of the pyramid

$V_{pyramid}=\frac{1}{3}(11 \times 11 \times 4.3) \approx 173.4ft^{3}$

The sum of both figures represents the total volume of the composite figure

$V_{total}=242+173.4=415.4ft^{3}$

Therefore, the right answer is 415.4 cubic feet.

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Scilla [17]

Answer: -8-10

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B12%7D%20%20%5Cdiv%20%20%5Cfrac%7B2%7D%7B11%7D%20%20%3D%20" id="TexFormula1

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5/12 x 11/2 = 55/24

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hope this helps

<em>~Rise Above the Ordinary</em>

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3 years ago

Help? I'm not sure I understand how to solve this.

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