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kakasveta [241]
3 years ago
9

Concrete can be purchased by the cubic yard. How much will it cost to pour a circular slab 18 ft in diameter by 3 in. for a pati

o if the concrete costs $40.00 per cubic yard?
Mathematics
2 answers:
Akimi4 [234]3 years ago
4 0

Answer: Thus cost of concrete to pour the circular slab is <u><em>$ 94.25</em></u>

Step-by-step explanation:

Given

Diameter of circular slab, d=18 ft

Thickness of slab , t= 3 inches = 0.25 ft

Rate of concrete , R = $40.00 per cubic yard

Volume of the slab , V=\frac{\pi d^{2}t}{4}=\frac{\pi \times 18^{2}\times 0.25}{4} ft^{3}=63.6 ft^{3}

Now 1 cubic yard = 27 cubic feet

Therefore volume , V=63.6 ft^{3}=\frac{63.6}{27}yard^{3}=2.356yard^{3}

=> cost of concrete , C=V\times R=\$ 2.356\times 40=\$ 94.25

Thus cost of concrete to pour the circular slab is <u><em>$ 94.25</em></u>

Brums [2.3K]3 years ago
3 0
280 dollars
Glad I could help
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In ΔRST, s = 58 inches, ∠R=115° and ∠S=19°. Find the length of r, to the nearest 10th of an inch.
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Step-by-step explanation:

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8 0
3 years ago
The exchange rate at a post office is £1 = 1.17 euros <br><br> how many euros will u get for £280
Sati [7]

Answer:

327.6 €

Step-by-step explanation:

you can solve with an equation

1£ : 1.17€ = 280£ : x

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-------------------

check

1 : 1.17 = 280 : 327.6

0.85 = 0.85

the answer is good

------------------------------------

or you can simpy solve with a multiplication

280 * 1.17 = 327.6

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3 years ago
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