1 litre can of paint covers 11m squared. How many cans of paint would you need to cover a perfectly square ceiling that has a side length of 5.2 m?

If paint caosts $29.95 per can and there is a 12% tax. How much would it cost to paint the ceiling?

Hold it! im going to try this myself but i want someone to check if i did it right:

5.2 x 5.2 = 27.04

11 x 3= 33
You would need 3 cans of paint.

27.04 x 3 = 81.12

ok now im stuck... how do you do this part::If paint caosts $29.95 per can and there is a 12% tax. How much would it cost to paint the ceiling?

5.2 * 5.2 = 27.04 square meters

27.04 / 11 = 2.46 = 3 cans of paint

(3 * 29.95) * 1.12 = ?

OOPS oh so is this how you do it:: 29.95 x 3= 89.85x 1.12 = $100.632

i just have one question: where did the 1.12 come from?

1.12 = 112%

Nope it would be 1.12=12%

if you are going to follow this way
29.95 x 0.12=3.594
so look here 29.95 + 3.594=33.544
29.95 x 1.12 =33.544

To find out how many cans of paint are needed to cover the square ceiling, we need to calculate the area of the ceiling and then divide it by the coverage of one can.

The formula to find the area of a square is: Area = side_length * side_length.

For the given ceiling with a side length of 5.2 m, the area can be found as follows:
Area = 5.2 m * 5.2 m = 27.04 m^2.

Now, to calculate the number of cans needed, we divide the total area of the ceiling by the coverage of one can:
Number of cans = Ceiling area / Coverage of one can.

Number of cans = 27.04 m^2 / 11 m^2 = 2.46 cans (rounded up to the nearest whole number).

Therefore, you would need 3 cans of paint to cover the ceiling.

Now let's calculate the cost of paint with tax:

The cost of one can of paint is $29.95, and there is a 12% tax applied to the total cost.

First, we need to find the total cost before tax by multiplying the cost of one can by the number of cans:
Total cost before tax = Cost per can * Number of cans.

Total cost before tax = $29.95 * 3 = $89.85.

Next, we calculate the tax amount by multiplying the total cost before tax by the tax rate:
Tax amount = Total cost before tax * Tax rate.

Tax amount = $89.85 * 0.12 = $10.78.

Finally, we can calculate the total cost including tax by adding the total cost before tax and the tax amount:
Total cost including tax = Total cost before tax + Tax amount.

Total cost including tax = $89.85 + $10.78 = $100.63.

Therefore, it would cost $100.63 to paint the ceiling, including tax.