. the bathroom nloor is a rectangle measuring 4m by 2m. each tile is 20cm by 20cm. how many tiles does he need?

200

Step-by-step explanation:

First, we know that 1 meter=100 centimeters, so we need to find a common measurement. Lets right it all as meters, so we dont get confused. Then we can find the total area of the floor by multiplying the too side lengths together:

400 centimeters x 200 centimeters= 80000 centimeters!

The total area of the floor is 80,000 centimeters

Now find the area of each tile:

20 centimeters x 20 centimeters= 400 centimeters

Now to find how many of those tiles can fit in that floor, we divide 80,000 by 400.

80,000/400=200

He needs 200 tiles.

Hope this helps!

Yes, there will be a total of 6 distance markers that are placed at the same location as one of the other items. At 25% through the race there will be a water station and distance marker. At 40% through the race there will be another water station and distance marker. At 50% there will be a viewing station and two distance markers. At 60% there will be a water station and a distance marker. At 80%, another water station and distance marker. And finally, at 100% through the race there will be a water station, viewing station and two distance markers.