SOLUTION: 0Can anybody help me with those problems 1. A room measures 10 feet by 12 feet. The construction crew is going to tile the floor using tiles that are 8 inches square. If each tile

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Question 139892: 0Can anybody help me with those problems
1. A room measures 10 feet by 12 feet. The construction crew is going to tile the floor using tiles that are 8 inches square. If each tile costs 48 cents, how much will it cost to tile the floor?
2. Johns runs at a rate of 5 km per hour. He is entered in a 3000 meter race this weekend. Approxiamately how long should it take him to complete the race?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
1. let's first get square footage of the room: 120+inches+%2810feet%29%2A144+inches+%2812feet%29+=+17280+square+inches
Then, they're using a tile with 64 square inches area, as per given 8 inches square (area 8x8).
So total consumed tiles will be 17,280/64=270 tiles*0.48cents/tile = $129.60 the total cost to tile the floor.
2. 3000meter=3km/5km per hour = 0.6 hour*60min/hr = 36 minutes to complete the race