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3 years ago

210 divided by 5 in distributive property

Mathematics

2 answers:

Zarrin [17]3 years ago

3 0

210 divided by 5 is 42

Montano1993 [528]3 years ago

3 0

Answer:

$210\div 5=42$

Step-by-step explanation:

To find : 210 divided by 5 in distributive property ?

Solution :

Distributive property of division is defined as

$(b+c)\div a=(b\div a)+(c\div a)$

Expression $210\div 5$

Distributing, 210=200+10

So, $(200+10)\div 5$

Applying property,

$(200+10)\div 5=200\div 5+10\div 5$

$(200+10)\div 5=40+2$

$(200+10)\div 5=42$

Therefore, $210\div 5=42$

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3 years ago

If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases whe

mixas84 [53]

Answer:

The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.

Step-by-step explanation:

A snowball is spherical, so it's area is given by the following formula:

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The radius is half the diameter so:

$A = 4\pi (\frac{d}{2})^{2}$

$A = 4\pi \frac{d^{2}}{4}$

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If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases when the diameter is 10 cm.

We have to find $\frac{dd}{dt}$ when $\frac{dA}{dt} = -5, d = 10$