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3 years ago

The diameter of the circle is 8 inches. What is the area?

Mathematics

2 answers:

EleoNora [17]3 years ago

8 0

50.2655 but You can also put it as 50in! :D

bagirrra123 [75]3 years ago

3 0

50.3in² ( to 1 decimal place )

the area of a circle is calculated using

area = πr² ( where r is the radius)

here diameter = 8 ⇒ r =8/2 = 4

area = π × 4² = 16π = 50.3 in²

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kvv77 [185]

Answer:

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Step-by-step explanation:

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3 years ago

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kumpel [21]

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Step-by-step explanation:

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Katarina [22]

Answer:

$\frac{x-16.5}{16.5}=0.30$

Hopefully, this is your desired setup. (I noticed the formula you have to fill in there.)

Have a good day.

Step-by-step explanation:

Hi.

You could use the percent change formula.

Since we know it is a percent increase then we will do new-old instead of old-new:

$\frac{\text{new}-\text{old}}{\old}$

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16.5 is the original amount (old) of shampoo.

The percent increase is 30%=0.30 .

So we have the following equation:

$\frac{x-16.5}{16.5}=0.30$

We could have found the equation like this:

$16.5+16.5(0.30)=x$

Subtract 16.5 on both sides:

$16.5(0.30)=x-16.5$

Divide both sides by 16.5:

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By us of symmetric property of equality:

$\frac{x-16.5}{16.5}=0.30$

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Hello!

Answer:

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Step-by-step explanation:

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