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IgorLugansk [536]
2 years ago
14

On a farm, there is a grain silo.The silo is cylindrical with a tile roof. The silo has a diameter of 8 metres and is 6 metres t

all. The farmer wants to paint the curved surface of the silo.Each can of paint will cover 20m². The paint costs $11.75 per can. How much will it cost the farmer to paint the silo?​
Mathematics
1 answer:
Reptile [31]2 years ago
5 0

The paint that the farmer needs to paint his Silo will cost $152.75.

<h3>How to calculate the price of the paint that the farmer will require?</h3>

To calculate the value of the total paint that the farmer will require, we must carry out the following procedure:

1. Identify the area you need to paint

  • 2πrh + 2πr²
  • 2 * 3.14 * 4m * 6m + 2 * 3.14 *4m² = 251.32m²

2. Find how many cans of paint he needs.

  • 251.32m² ÷ 20m² = 12.56

That is, he will need 13 cans of paint.

3. Find the price of 13 cans of paint.

  • $11.75 × 13 = $152.75

Learn more about area in: brainly.com/question/27683633

#SPJ1

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If a car’s speed is 70 miles per hour on a road surface with a drag factor of 0.50 and with a breaking efficiency of 85% (n = .8
hichkok12 [17]

Answer:

About 384.3 feet

Step-by-step explanation:

The formula for that is given by,

S= \sqrt{30 \times d \times f \times n}

Where,

S is the speed of the car

d is the distance of skid

f is the drag factor for the road surface

n is breaking efficiency as percentage

Putting the values we get,

S^2=  30 \times d \times f \times n

d= \frac{S^2}{30 \times f \times n}

d = \frac{70^2}{30 \times 0.50 \times 0.85} = 384.3 feet

So the length of skid marks would be 384.3 feet.

8 0
3 years ago
2. Mark works as a consultant for a computer firm. His weekly income is $425. His
ELEN [110]

Hi there, I hope you understand my answer and that it is correct :)

So, First we multiply $425 by 4 because there are approximately 4 weeks in every month, so as shown  425*4=1,700

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Next We subtract the answer, which we got to be 1,700 from 1266.  

 1700 - 1266=434

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<h2>Answer : $434 left to spend :) </h2><h2></h2><h2></h2>

8 0
3 years ago
Which polynomials are in standard form?
Leni [432]

Answer:

B:x^4-8x^2-16

Step-by-step explanation:

B: x^4-8x^2-16 is in standard form.

4 0
3 years ago
you have 3.75 to spend at a vending machine. You want to buy at least three health bars. Regualr health bars cost 0.75 each and
DedPeter [7]

Answer:

Let x be the number of regular health bars you buy and y the number of strawberry health bars you buy. Then:

0.75x+1.25y=3.75

x+y>=3

Step-by-step explanation:

For the first equation, we have to assume that you will spend all of your money, otherwise it becomes an inequation. The money you spend on regular bars is 0.75x dollars and the money you spend on strawberry bars is 1.25y, so if you spend your 3.75 dollars on the bars, then 0.75x+1.25y=3.75.

For the second, you will always buy x+y health bars, regular and strawberry. There isn't enough information to make this into a equation, the only thing we can deduce is the inequation x+y>=3.

If we also assume that x and y are integers (we can't buy half-bars or one-fourth of a bar) then the minimum number of bars we can buy is 3 (3 strawberry bars) and the maximum is 5 bars (5 regular bars). x+y must be an integer too, so the possibilities for the second equation are x+y=3, x+y=4 and x+y=5. There is a finite number of solutions in any case.  

4 0
3 years ago
A=1/2b(c+d) solve for c
TiliK225 [7]

Answer:

c = \frac{2A}{b} - d

Step-by-step explanation:

Multiply both sides by 2 to eliminate the fraction

2A = b(c + d) ← divide both sides by b

\frac{2A}{b} = c + d ← subtract d from both sides

\frac{2A}{b} - d = c

5 0
4 years ago
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