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3 years ago

Round to the nearest tenth :)

Mathematics

1 answer:

Scorpion4ik [409]3 years ago

8 0

Good morning

Answer:

Surface area (rounded to the nearest tenth) = 193.3 in²

Step-by-step explanation:

Surface area of this prism = 2×(base’s area) + lateral area

base’s area = (1.9 × 7)/2 = (1,9×7)÷2 = 6.65

lateral area = 12×(7+3+5) = 180

then

Surface area of this prism = 2×(base’s area) + lateral area

= 2×(6.65)+180

= 193.3

________________________

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3 years ago

A mail carrier at the U.S. Postal Service works on Sunday delivering high-priority letters and packages. She can deliver 14 ite

Kobotan [32]

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Step-by-step explanation:

Given:

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3 years ago

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B, look at picture for explanation

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3 years ago

Your family is installing a new square pool in the backyard. The existing patio has a side length of 8 feet. How much of the pat

trasher [3.6K]

The question is an illustration of perimeters.

The amount of patio to remove to install the pool is 8 feet.

From the question, we have:

$\mathbf{Length\ of\ the\ pool = 8}$

$\mathbf{Length\ of\ walkway = 1}$

The perimeter of the patio is:

$\mathbf{P_p = 4 \times Length\ of\ the\ pool}$

$\mathbf{P_p = 4 \times 8}$

$\mathbf{P_p = 32}$

A 1ft walkway means that;

1ft would be subtracted from both sides of the patio before installing the pool

So, the perimeter of the patio in terms of the length of the pool is:

$\mathbf{P_p = 4 \times (x +2)}$

Equate both expressions

$\mathbf{P_p = P_p}$

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Divide both sides by 4

$\mathbf{x +2 = 8}$

Subtract 2 from both sides

$\mathbf{x = 6}$

So, the perimeter of the pool is:

$\mathbf{P_{pool} = 4 \times 6}$

$\mathbf{P_{pool} = 24}$

The amount of patio to remove is:

$\mathbf{Amount = P_p - P_{pool}}$

So, we have:

$\mathbf{Amount = 32 - 24}$

$\mathbf{Amount = 8}$

Hence, 8ft of the patio would be removed to install the pool

<em>See attachment for illustration</em>

Read more about perimeters at:

brainly.com/question/6465134

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2 years ago

Last year Peter spent a total of 8 1/6 hours on community service. Visits to old folks' homes made up 4/7 of the total time. How

zhannawk [14.2K]

Answer:

A. 4 2/3 hours

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Firstly, to find the number of hours he used in visiting old folks, what we have to do is to multiply the fraction of hours he used by the total number of hours.

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ii) Now we want to know how much more time will be spent this year than last year.

What to do here simply is to subtract the time taken last year from what we have this year

That would be;

49/5 - 49/6 = 49/30 = 1 19/30

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3 years ago