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29 September, 04:58

Sandra buys tiles for her bathroom walls. Each tile is a square with sides 15cm.

a. Calculate the area of one tile

b. She wishes to cover an area of 108,900cm^2. How many tiles does she need?

c. There are 36 tiles in each box, and only whole boxes can be purchased. How many boxes does Sandra need to buy?

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Answers (1)
  1. 29 September, 05:17
    0
    A. Area is 15cm x 15cm = 225cm is the area of 1 tile.

    B. She will need 484 tiles

    C. She will need to purchase 14 boxes
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