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damaskus [11]
4 years ago
5

SOMEBODY PLS HELP ME URGENT!!!!!!!!!!

Mathematics
1 answer:
sammy [17]4 years ago
3 0
1. The dimensions of the tank should be 20 by 20 by 20. The hint is telling you that a tank that is 2 by 2 by 2 has a volume of 8, so, if you increase the size of the dimensions, you can reach 8,000 with the same digit of 2. Don't forget that the formula for the volume of a rectangular prism is lwh.

2. Since our aquarium is a square tank that is 20 by 20 by 20, each side on the top is 20 inches long. We have 4 sides, so the perimeter is 4 x 20, or 80. The perimeter of the top of our tank is 80 in². As for the base, we already know that each side is 20, so, in order to find the area of the base, we just multiply 20 x 20 to get 400. The area of the base of the tank is 400 in².

3. Another rectangular prism with a volume of 8,000 might have dimensions of 40 by 20 by 10. These, multiplied together, equal 8,000, using the formula for the volume of a rectangular prism.

To find the dimensions of the rectangular prism that equal 8,000, I mostly just use trial and error. It helps if you think about it as 8, as shown in the first problem, or if you list the factors of 8. For instance, for number 3, I just used the factors of 8 to find some possible dimensions.

8 - 1, 2, 4, 8
For number 3, I used the factors 1, 2, and 4. To change it from 8 to 8,000, I just changed 1 to 10, 2 to 20, and 4 to 40.

Hope this helps!
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Okay so here you go 

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Fraction form: -19/15

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Simplify brackets
-2/3 - 3/5

Simplify: -19/15


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-9(5 + 2p)<br> combining like terms
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Step-by-step explanation:

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a boat costs $16,600 and decreases in value by 14% per year. how much will the boat be worth after 11 years ?
MAVERICK [17]

Answer:

In the end, $16600 has turned into $3159.30.

Step-by-step explanation:

Notice that at each compounding step above, the new principal can be found by applying this formula:


NewPrincipal = CurrentPrincipal × (1 + r)

where r is your interest rate at the time of compounding, in this case -14% (or -0.14 in the calculations).


As an example, look at the first compounding step:


$14276.00=$16600.00 × (1 + -0.14).

And the second:


$12277.36=$14276.00 × (1 + -0.14).

In fact, the whole compound interest amount boils down to multiplying (1+r), or (1+-0.14), times your original principal 11 times (11 years at 1 compouding(s) per year).


Mathematically though, this is equivalent to multiplying your orginial principal by the factor (1+-0.14)11.


If we do this, we'll get that your final amount is:


$16600.00 × (1+-0.14)11=$3159.30


8 0
3 years ago
Mr. Conner is placing stone tiles to make a patio. Each tile is 1 square foot. The drawing shows the dimensions of his patio.
White raven [17]

This question is incomplete

Complete Question

Mr. Conner is placing stone tiles to make a patio. Each tile is 1 square foot. The drawing shows the dimensions of his patio. A quadrilateral is broken into a triangle and rectangle. The triangle has a base of 20 feet and a height of 6 feet. The rectangle has a base of 20 feet and a height of 12 feet. How many total stone tiles will Mr. Connor need for the patio?

Answer:

300 tiles

Step-by-step explanation:

From the above question, we know that the patio is a combination of a triangle and a rectangle.

Step 1

Find the area of the shape

a) Area of the Triangle = 1/2 × Base × Height

Base = 20 feet

Height = 6 feet

Area = 1/2 × 20 × 6

Area = 60 square feet

b) Area of the rectangle

= Length × Breadth.

The rectangle has a

Base = Breadth = 20 feet

Height = Length = 12 feet

Area = 20 × 12 = 240 square feet.

Total Area of the patio

= Area of Triangle + Area of square

= 60 square feet + 240 square feet

= 300 square feet

Step 2

We are told that each stone tile = 1 square foot.

Hence, if the total area of the patio = 300 square feet, the number of stone tiles that would be used is

1 square foot = 1 stone tile

300 square feet = 300 stone tiles.

Therefore,the total stone tiles that Mr. Connor will need for the patio is 300 stone tiles.

5 0
3 years ago
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