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3 years ago

Of the students in your class 25% walk to school.what fraction of the students walk to school?

Mathematics

1 answer:

kari74 [83]3 years ago

4 0

25% = 1/4 ..................

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2 years ago

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Step-by-step explanation:

<h3>Appropriate QuestioN :</h3>

The volume of a cylinder is 108π cm³ and its height is 12 cm. What is the length of the cylinder's radius?

We have to find the length of the cylinder's radius.

$\red{\frak{Given}} \begin{cases} & \sf{Volume\ of\ the\ cylinder\ =\ {\pmb{\sf{108{\pi}\ cm^3.}}}} \\ & \sf{Height\ of\ the\ cylinder\ =\ {\pmb{\sf{12\ cm.}}}} \end{cases}$

We know that,

The volume of a cylinder is the density of the cylinder which shows the amount of material contained in the cylinder.
The volume of the cylinder is given by, πr²h.

Where,

r is for radius.
h is for height.

$\rule{200}{3}$

Now, let's calculate the length of the cylinder's radius.

$\sf \dashrightarrow {Volume\ of\ cylinder\ =\ {\pi}r^2h} \\ \\ \\ \sf \dashrightarrow {108{\pi}\ =\ {\pi}r^2h} \\ \\ \\ \sf \dashrightarrow {108{\cancel \pi}\ =\ {\cancel \pi}r^2 \times 12} \\ \\ \\ \sf \dashrightarrow {108\ =\ r^2 \times 12} \\ \\ \\ \sf \dashrightarrow {\dfrac{\cancel{108}}{\cancel{12}}\ =\ r^2} \\ \\ \\ \sf \dashrightarrow {r^2\ =\ 9} \\ \\ \\ \sf \dashrightarrow {r\ =\ \sqrt{9}} \\ \\ \\ \dashrightarrow {\underbrace{\boxed{\pink{\frak{r\ =\ 3\ cm.}}}}_{\sf \blue{\tiny{Radius\ of\ cylinder}}}}$

∴ Hence, the length of the cylinder's radius is 3 cm.

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1 year ago