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3 years ago

48 ounces to 5 Pounds (ratio)

Mathematics

1 answer:

koban [17]3 years ago

4 0

Answer:

3:5

Step-by-step explanation:

16 ounces = 1 pound

80 ounces =5 pounds

Simplify:

48:80

6:10

3:5

Hope this helped! :)

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Therefore the circumference of the circle is $=\frac{20\pi}{4+\pi}$

Step-by-step explanation:

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The circumference of the circle is =2πr

Given that the length of the wire is 20 cm.

According to the problem,

4s + 2πr =20

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For maximum or minimum $\frac{dA}{dr}=0$

Differentiating with respect to r

$\frac{dA}{dr}= \frac{2\pi r(4+\pi)}{4} -5\pi$

Again differentiating with respect to r

$\frac{d^2A}{dr^2}=\frac{2\pi (4+\pi)}{4}$ > 0

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$\frac{dA}{dr}=0$

$\Rightarrow \frac{2\pi r(4+\pi)}{4} -5\pi=0$

$\Rightarrow r = \frac{10\pi }{\pi(4+\pi)}$

$\Rightarrow r=\frac{10}{4+\pi}$

$\frac{d^2A}{dr^2}|_{ r=\frac{10}{4+\pi}}=\frac{2\pi (4+\pi)}{4}>0$

Therefore at $r=\frac{10}{4+\pi}$ , A is minimum.

Therefore the circumference of the circle is

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3 years ago