A rectangular floor of area 21.6 m2 is going to be tiled. Each tile is rectangular, and has an area of 576 cm2. An exact number of tiles can be put into the space. How many tiles will be needed?

375

Step-by-step explanation:

You want to find a number n which fulfills

21.6 m2 = n * 576 cm2.

Be careful! The units are different on the left and right side of the equation.

If we change to m2 on the right side, than that means we have to divide by 10.000 becaus 1 m2 is equivalent to 10000 cm2.

(1 m2 = 1 m * 1 m = 100 cm * 100 cm = 10000 cm2)

That gives us

21.6 m2 = n * 0.0576 m2

Now divide both sides of the equation by 0.0576 m2 and we get

= n

375 = n

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*

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step-by-step explanation: