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3 years ago

You are laying an asphalt driveway. How much surface area must you cover if the driveway is 19 feet long and 10.5 feet wide?

Mathematics

2 answers:

Scorpion4ik [409]3 years ago

7 0

Assuming that your driveway is rectangular, just mult. the length and width together to get the area:

(19 ft)(10.5 ft) = 199.5 ft^2

C is the correct answer choice.

Pie3 years ago

5 0

Answer:

Option C - 199.5 sq. ft.

Step-by-step explanation:

Given : You are laying an asphalt driveway. If the driveway is 19 feet long and 10.5 feet wide.

To find : How much surface area must you cover?

Solution :

The asphalt driveway is in the shape of a rectangle.

The length of the driveway is 19 feet.

The breadth of the driveway is 10.5 feet.

The formula of the area of the rectangle is

$A=l\times b$

$A=19\times 10.5$

$A=199.5ft^2$

Therefore,Option C is correct.

The surface area of driveway is 199.5 sq. ft.

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Answer:

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$0.076 kW * 6.3 \frac{hours}{day}= 0.4788 \frac{kWh}{day}$

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And finally we can convert this into money like this:

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Step-by-step explanation:

For this case we can convert the average power into Kw like this:

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Now on average we know that one person use on average this power over 6.3 hours per day so then we have the following consumption rate:

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And now we know the total population so then the total consumption per day would be:

$113x10^6 people * \frac{0.4788 kWh}{people}= 54104400 kWh$

And finally we can convert this into money like this:

$54104400 kWh *\frac{0.089 dollars}{1 kWh}= 4815291.6$

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