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2 years ago

5

the ratio of 7th graders to 8th grader at a school dance is 3 to 2. there are 54 7th graders at a dance. how many 8th graders ar

e at the dance?

1 answer:

Georgia [21]2 years ago

6 0

I just want u to know that u are loved

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The area of a rectangle is 144cm squared. The length of the rectangle is 8 cm. What is the measure of the width of the rectangle

Gelneren [198K]

<h2>Greetings!</h2>

Answer:

The width is 18cm

Step-by-step explanation:

If the equation of the area of a rectangle is:

Area = length * width

Then you substitute in the values you know:

144 = 8 * width

To find the width you need to rearrange the formula to make the width the subject. Do this by dividing the area by the length:

Width = 144 / 8

Width = 18

So the width is 18cm

<h2>Hope this helps!</h2>

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2 years ago

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3 years ago

Work out the volume for this prism

melisa1 [442]

<h3><u>given</u><u>:</u></h3>

<u> $area = 24 \: {cm}^{2}$ </u>

<u> $height = 8 \: cm$ </u>

<h3><u>to</u><u> </u><u>find</u><u>:</u></h3>

the volume of the given prism.

<h3><u>solution</u><u>:</u></h3>

<u> $v = area \: of \: cross \: section \times height$ </u>

<u> $v = 24 \times 8$ </u>

<u> $v = 192 \: {cm}^{3}$ </u>

<u>hence</u><u>,</u><u> </u><u>the</u><u> </u><u>volume</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>prism</u><u> </u><u>is</u><u> </u><u>1</u><u>9</u><u>2</u><u> </u><u>cubic</u><u> </u><u>centimeters</u><u>.</u>

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1 year ago

The height of a cone is twice the radius of its base.

amm1812

Answer:

The correct answer is option 1. $\frac{2}{3} \pi x^3$ cubic units.

Step-by-step explanation:

The formula for the volume, V of a right angled cone is given as:

$V = \dfrac{1}{3} \pi r^{2} h ...... (1)$

Where, $\pi = 3.14$

$r$ is the radius of the circular base of the cone.

$h$ is the height of the cone.

We are given that height is twice of the radius of its base.

Let the radius of base = $x$ units

Now, As per the question statement,

The height of cone= $2 \times x$ units

Putting the values of $r, h$ in equation (1) to find the volume:

$\Rightarrow \dfrac{1}{3} \times \pi \times x^{2} \times 2x\\\Rightarrow \dfrac{2}{3}\pi x^{3}$

Hence, the correct answer is option 1. $\dfrac{2}{3}\pi x^{3}$ cubic units.

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2 years ago

Help!!!<br> If AB=4 feet & AD=10 feet & m What is DC?<br> What is BD?

LuckyWell [14K]

DC= 4
BD= 10

Hope it’s right
Best luck with your studying

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2 years ago

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