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Tju [1.3M]
3 years ago
15

One bag contains a mixture of 30% black sand and 70% red sand. A second bag

Mathematics
1 answer:
ipn [44]3 years ago
8 0

Answer:

Finish the question

Step-by-step explanation:

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What is the effect on the volume of a sphere if the radius is divided by 3?
Neko [114]

For this case we have by definition, that the volume of a sphere is given by:

V = \frac {4} {3} \pi * r ^ 3

Where:

r: It is the radius of the sphere

If the radius is divided by 3 we have:

\frac {r} {3}:

V = \frac {4} {3} \pi * (\frac {r} {3}) ^ 3\\V = \frac {4} {3} \pi * \frac {r ^ 3} {27}\\V = \frac {4} {81} \pi * r ^ 3

ANswer:

the volume decreases considerably because the denominator increases

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3 years ago
What is 1/8 as a decimal
Vilka [71]

Answer:

1.8

Step-by-step explanation:

1.8

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3 years ago
The zeros of function dare -3 and 8. Which expression could be a factor of function d?
erastovalidia [21]

Answer:

(x + 3)

Step-by-step explanation:

Using the zero product property

x-a = 0  x-b = 0  where a and b are the zeros

(x-a)(x-b) =0

(x- -3)(x -8) =0

(x+3) (x-8) =0

3 0
3 years ago
Which of the following best describes the term direct variation?
olchik [2.2K]
That would be A...they have to have a constant ratio
5 0
3 years ago
21 regular sodas and 49 diet sodas. What percentage of the sodas served were regular?
morpeh [17]

Answer:

30% of the sodas were regular sodas

Step-by-step explanation:

Add 21 and 49 to get the total number of sodas and 21+49=70. To get the percentage, divide 21 by 70 (21÷70) is 0.3 or 30%.

To check, do 30% (or 0.3) • 70 and you will get 21.

3 0
3 years ago
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