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Nadusha1986 [10]
3 years ago
10

The top of a monument will be a rectangular pyramid. It will take 22 m3 of bronze to make the top that is 11 m tall.

Mathematics
2 answers:
rusak2 [61]3 years ago
8 0

Answer:

<h2>3m</h2>

Step-by-step explanation:

Volume of a pyramid = 1/3 * Base area * height

If the top of the monument is 11m tall, then the height of the pyramid is 11m. If it will take C of bronze to make the top that is 11 m tall, the volume of the pyramid is 22m³.

Substituting the given data into the formula to get the base area;

22 = \frac{1}{3}* B * 11\\ 22 = \frac{11B}{3} \\22*3 = 11B\\66 = 11B\\B = 66/11\\B = 6m^{2}

Since the base of the pyramid is rectangular in nature,

Base Area = Length * Breadth

Base Area = 6m², and the length of the base is given as 2m, the missing dimension will be the breadth of the rectangle.

6 = 2 * Breadth

Breadth = 6/2

Breadth = 3m

The missing dimension is 3m

SashulF [63]3 years ago
7 0

Answer:

c

Step-by-step explanation:

3m

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A pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters o
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y = amount of the 40% solution

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likewise, how many liters are there in the 40% solution?  well, (40/100) * y, or 0.4y, that many.

we know the mixture has to yield 10 liters at 20% alcohol, how many liters of only alcohol is that?  well, (20/100) * 10, or 2 liters.

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3 0
3 years ago
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Gre4nikov [31]

Answer:

a = (p - 3b)/10

Step-by-step explanation:

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction).

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First, subtract 3b from both sides.

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Next, isolate the a. Divide 10 from both sides.

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(p - 3b)/10 = a

a = (p - 3b)/10 is your answer.

~

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3 years ago
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