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3 years ago

The circumference of a circle is 16Pi ft. The radius is ____ ft.

Mathematics

2 answers:

zloy xaker [14]3 years ago

8 0

Answer:

radius is 8 ft

Step-by-step explanation:

circumference formula is 2pi r

so if the circumference is 16 pi, we divide it by 2 to get 8 pi and divide it by pi to get 8.

Snowcat [4.5K]3 years ago

4 0

Answer:

8 ft

Step-by-step explanation:

The circumference is given by

C = 2 * pi *r

16 pi = 2 * pi *r

Divide each side by 2 pi

16 pi / 2 pi = 2 pi r / 2 pi

8 = r

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How much salt is in a mixture containing 10 gal of an 11% salt solution and 6 gal of a 7% salt solution

Helga [31]

In a 10 gal of an 11% salt solution,

11% of 10 gal are sal.

11% *10 gal=(11/100)*10 gal =0.11*10 gal = 0.1 gal is salt.

Similarly, 0.07*6 gal= 0.42 gal is salt of the 6 gal in the second solution.

The mixture is 10 gal +6 gal = 16 gal, and contains a total of

0.1 gal +0.42 gal = 0.52 gal of salt.

0.52 = x% of 16

0.52=x%*16

x=(0.52/16)*100=0.0325*100=3.25

Answer: there is 0.52 gal of salt in the mixture, that is 3.25%

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3 years ago

The number of square units in the base area of a prism is greater than the number of cubic units in the volume of the prism. Is

Triss [41]

Answer:

Step-by-step explanation:

1+1+1=3

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3 years ago

H/j=15 solve for j <br> Please answer

Katyanochek1 [597]

Hey!

Let's write the problem,
$\frac{H}{j}=15$
Multiply both sides by $j$ in order to undo the fraction.
$\frac{H}{j}j=15j$
$H=15j$
Let's switch sides so that we end up with $j$ on the left side.
$15j=H$
Divide both sides by $15$ .
$\frac{15j}{15}=\frac{H}{15}$

Our final answer would be,
$j=\frac{H}{15}$

Thanks!
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hodyreva [135]

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nika2105 [10]

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Step-by-step explanation:

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