MATHEMATICS HIGH SCHOOL

a community hall is in the shape of a cuboid. the hall is 20m long, 15m wide and 4m high. the community hall needs re-decorating with new paint for the walls and ceiling, and new tiles on the floor. a 20l tin of paint covers 40 squared metres and costs £15. 1 squared metre floor tiles cost £3 each. work out the total cost of paint and tiles needed to decorate the community hall.

Answers

Answer 1

Answer:

Answer:

the total cost of paint and tiles needed to decorate the community hall is £105 + £900 = £1005.

Step-by-step explanation:

Area of the walls:

- The community hall is shaped like a cuboid, so the walls are the four rectangular sides.

- The length and height of each wall are given as 20m and 4m, respectively.

- The total area of the walls is the sum of the areas of all four walls: 2 * (length * height + width * height).

- Substituting the given values, we have: 2 * (20m * 4m + 15m * 4m).

2. Area of the ceiling:

- The ceiling is also a rectangle, with the same length and width as the floor.

- The area of the ceiling is given by length * width: 20m * 15m.

3. Area of the floor:

- The area of the floor is the same as the area of the ceiling: 20m * 15m.

Now, let's calculate the areas:

1. Area of the walls:

- 2 * (20m * 4m + 15m * 4m) = 2 * (80m^2 + 60m^2) = 2 * 140m^2 = 280m^2.

2. Area of the ceiling:

- 20m * 15m = 300m^2.

3. Area of the floor:

- 20m * 15m = 300m^2.

Next, we can calculate the number of tins of paint and tiles needed and their costs:

- Number of tins of paint needed = Area of walls / Coverage per tin = 280m^2 / 40m^2/tin = 7 tins.

- Cost of paint = Number of tins * Cost per tin = 7 tins * £15/tin = £105.

- Number of tiles needed = Area of floor / Area per tile = 300m^2 / 1m^2/tile = 300 tiles.

- Cost of tiles = Number of tiles * Cost per tile = 300 tiles * £3/tile = £900.

Therefore, the total cost of paint and tiles needed to decorate the community hall is £105 + £900 = £1005.

yes, i am a student

Related Questions

7x+3y=22 4y=20 I need to know how to write this equation out with the answer
Mofor had $21 to spend on two notebooks. After buying them he had $13. How much did each notebook cost?
Find the discount if a $69.99 item is on sale for $39.99
14.88 to 12.32 find the ratio
Let f(x) = 7x - 13. Find f-1(x).

WZ
1. Which of the following terms best
describes the relationship between
Zw and 2X?
A corresponding angles
B same-side interior angles
C alternate interior angles

Answers

Answer:

Step-by-step explanation:

What is the answer to 12-2x6+2/2

Answers

$12-2*6+2/2=12-(2*6)+(2/2) = 12-12+1 = 1$

$12-2*6+ (2)/(2) \n \n =12-12+1 \n \n =1$

What is the following product?

Answers

Answer & Step-by-step explanation:

(5√2 - 4√3)(5√2 - 4√3)

We can rewrite this equation into a more simpler form.

(5√2 - 4√3)²

Now, we multiply. When multiplying, its important we multiply each term instead of combining them together.

When you multiply a radical by itself, then the base number will be by itself as the product.

So......

(5)² = 25

(4)² = 16

(√2)² = 2

(√3)² = 3

So, now the equation looks like this..

(25 * 2) + (16 * 3)

Multiply the terms.

50 + 48

Add the numbers.

50 + 48 = 98

So, your answer will be answer choice D. The radical in choice D represents the radicals that are in the problem multiplied together.

Solve each system of equations.

6x + 5y = 10
7x - 3y = 24

Answers

$\begin{cases} 6x + 5y = 10 \n 7x - 3y = 24 \end{cases}\n\begin{cases} 5y = -6x+10\ \ / :5 \n 7x - 3y = 24 \end{cases}\n\begin{cases} y =-(6)/(5)x+2 \n 7x - 3y = 24 \end{cases}\n\nsubstition \n$

$7x - 3y = 24 \n 7x - 3 \cdot (-(6)/(5)x+2) = 24\n7x+(18)/(5)x-6=24\n (35)/(5)x+(18)/(5)x =24 +6\n(53)/(5)x =30 \ \ / \cdot (5)/(53)\n\nx=(150)/(53)$

$y= -(6)/(5)x+2 \ny= -(6)/(5) \cdot (150)/(53) +2\ny=-(6\cdot 30)/(53)+2\ny=-(180)/(53)+ (106)/(53)\n \n y= -(74)/(53)\n\n Answer : x=(150)/(53) \ \ and \ \y= -(74)/(53)$

Suppose you flip a coin and spin a spinner that is divided into 8 equal regions. Of the 8 equal regions, 3 are red, 4 are black and 1 green. What is the probability of "tails" on the coin, and the spinner landing on red?  (Hint: How many spaces are on the spinner total?)Immersive Reader(5 Points)

Answers

Answer:

18.75%

Step-by-step explanation:

The probability of the coin is 1/2, because it only has two options (tail or head).

Now, in the case of roulette, it has a total of 8 options, and the red region has 3 parts, that is, of the 8 options, roulette 3 is red, therefore the probability is 3/8

Now the final probability is the multiplication of the probability of both events:

(1/2) * (3/8) = 0.1875s 18.75%

In other words, the probability of these two events happening, that the tail comes out and is red, i

Which is equal to 42 • 48?
a. 416
b. 410
c. 46
d. 4−6