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
Answer:
54.67%
Step-by-step explanation:
18.75 -8.75 x 100% = 54.67
18.75
4.12
4.47
5.66
Answer: 4.47 is the correct one :)
Answer:
4.47
Step-by-step explanation:
took the test
f(x) = 5(6.86x)
f(x) = 5(6.86)^x
f(x) = 328.51^x
Answer:
f(x) = 5(6.86)^x
Step-by-step explanation:
The function f(x) can be simplified according the the laws of mathematics. The expression is 5 multiplied by the 1.9^3x. You cannnot multiply 5 with 1.9 because 1.9 has a power of 3x. The 5 can only be multiply by the 1.9 if the 5 had a power of x or if 1.9 has a power of just 3. Therefore:
f(x) = 5×(1.9×1,9×1.9)^x = 5×(6.86)^x
True
False
This statement is actually false.
I have provided proof and wish you all the best (grade).