Are the following ratios equivalent 4:8 and 36:72

Mathematics

2 answers:

ziro4ka [17]3 years ago

7 0

4 x 72 =288
8 x 36 =288

The answer is yes. The ratios are equivalent.

Alik [6]3 years ago

5 0

4x72=288 8x36=288 The same number so it must be equivalent. Hopefully that helps you ❤

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A sphere is just enclosed inside a right circular cylinder. If the volume of the sphere is 140 cm3, find the volume of the gap b

alexgriva [62]

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Find Radius :
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$\text {Volume of a sphere =} \dfrac{4}{3} \pi r^3$

$\dfrac{4}{3} \pi r^3 = 140$

$\pi r^3 = 140 \times \dfrac{3}{4}$

$\pi r^3 = 105$

$r^3 = \dfrac{105}{ \pi}$

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Find volume of the cylinder :
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$\text {Volume of the cylinder = } \pi r^2h$

$\text {Volume of the cylinder = } \pi ((3.22)^2(3.22 \times 2)$

$\text {Volume of the cylinder = } 209.77 \ cm^3$

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Find volume of the gap :
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$\text {Volume of gap = } 209.77 - 140$

$\text {Volume of gap = } 69.77 \ cm^3$

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$\bf \text {Answer : } 69.77 \cm^3$
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6 0

3 years ago

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MrRa [10]

Answer:

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Step-by-step explanation:

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