A decroative floor pattern has one red square tile surrounded by 12 blue tiles. Write and evaluate an expression to show how many total tiles (red and blue) are needed if there are 15 red tiles. Then make a table showing the total number of tiles if there are 15,20,25, or 30 red tiles.

Question

A decroative floor pattern has one red square tile surrounded by 12 blue tiles. Write and evaluate an expression to show how many total tiles (red and blue) are needed if there are 15 red tiles. Then make a table showing the total number of tiles if there are 15,20,25, or 30 red tiles. 
plz answer that question i have to know it!

Anonymous · Answer

shouldn't it be for every 1 red tile there is 12 blue tiles 1:12 15:12*15 20:12*20 30:12*30

Sierra · Answer

I believe it is 15•12 because there are 15 red and for ever red there is 12 so just do 15•12 and that =180 hope it helped :3

Alex · Answer

Wrong. For one red tile there will be 12 blue tiles surrounding it. But what about the use case for 2 red tiles? They will have one side of shared blue tiles so only 20 blue tiles will be needed. For 3 red tiles there will be 28 blue tiles (not 36).