Homework Help: Math

Posted by Mack on Monday, March 3, 2008 at 6:29pm.

Open ended
Need HELP PLEASE!!!

Mr.Guy isfinishing his patio. The Patio is 14ft. by 4yds.

-If each square tile is 2 by 2, how many will he need?

-If the tile is 5 dollars each, but he gets every 5th one free, how much will it cost?

-If tiles are also sold in boxes of 15 that cost 30 dollars, Should he buy the boxed instead? Why?

Math - Damon, Monday, March 3, 2008 at 6:48pm
14 ft * 4 yds * 3 ft/yd = 168 ft^2

each tile = 2*2 = 4 ft^2

168/4 = 42 tiles

5 tiles cost 4*5 = $20

42/5 = 8 + 2/5

so
20*8 + 2*5 = 160+10 = $ 170

42/15 = 2.8
so he can buy 3 whole boxes for 3*30 = $90 big saving
He would have three left over then, tough.

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