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anyanavicka [17]
2 years ago
5

A map provided by an engineering firm has a scale of 1 inch to 2000 feet. If the distance from the starting point for a pipeline

to the ending point is 13 1/2 inches how long is the pipe line?
Mathematics
1 answer:
8090 [49]2 years ago
7 0

Answer:

27,000 feet

Step-by-step explanation:

Let x be the actual length of the pipeline, in feet.

Set up the following proportion:

\displaystyle\\\frac{1}{2,000}=\frac{13.5}{x}

Cross-multiplying yields x=13.5\cdot 2,000=\boxed{27,000\text{ ft}}

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Jerome photographed an aquarium that measured 12 inches by 18 inches by 24 inches. Lim photographed an aquarium that was 12 inch
8090 [49]

Answer:

the answer is 864 in3

Step-by-step explanation:

Jerome photographed an aquarium that measured 12 inches by 18 inches by 24 inches.

So V=LxWxH....

12 x 18 x 24= 5,184

Then...

Lim photographed an aquarium that was 12 inches by 30 inches by 12 inches.

So= V=LxWxH

12 x 30 x 12=4,320

And they need to see who has more so 5,184-4,320=864in3

I hope this helps also Into Math said it was correct :)

6 0
3 years ago
Evaluate 3x2 - 2x when x = 5
White raven [17]

Answer:

The answer is 65

7 0
2 years ago
Read 2 more answers
If a varies directly as p, and a = 260 when p = 13, what is the value of a when p = 17?
Talja [164]

Answer:

340

Step-by-step explanation:

As 260/13 = a/p

So, a/p = 20

Therefore, a= 20p

p=17

So, a = 20p

a= 20x17

a= 340

6 0
3 years ago
I need someone really good at math to help me please!! A home is purchased for $394,000 with a 14% down payment. Find the monthl
julia-pushkina [17]

9514 1404 393

Answer:

  $2300.01

Step-by-step explanation:

The down payment is 14% of $394,000, so is ...

  0.14 × $394,000 = $55,160

This means the principal amount of the loan is ...

  $394,000 -55,160 = $338,840

__

The amount of the monthly loan payment is given by the amortization formula ...

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

where P is the principal amount, r is the annual interest rate, and t is the number of years. Filling in the values, we have ...

  A = $338,840(0.072/12)/(1 -(1 +0.072/12)^(-12·30))

  = $338,840(0.006)/(1 -(1.006^-360)) = $2300.01

The monthly payment is $2300.01.

_____

<em>Additional comment</em>

Such calculations are commonly done using a spreadsheet, financial calculator, or app. If you're doing a number of financial calculations, it can be a good idea to obtain and learn to use an appropriate tool.

3 0
3 years ago
Find the area of a regular octagon with a perimeter of 96 centimeters
IgorC [24]

Answer:

A≈695.29cm²

Step-by-step explanation:

5 0
3 years ago
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