SOLUTION: A homeowner's backyard is a rectangle with width 15 yards long and length 17 yards long. They plan to put in a square pool with side length 7 yards long in the backyard and then wa

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Question 1038869: A homeowner's backyard is a rectangle with width 15 yards long and length 17 yards long. They plan to put in a square pool with side length 7 yards long in the backyard and then want to put tile in the rest of the entire backyard. How much tile do they need to buy?
Amount of tile=
please help. I have no idea what formulas to use and what exactly am I looking for, perimeter, volume, area?

Found 2 solutions by josmiceli, MathTherapy:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I notice 2 things about problem:
(1)
All data is in terms of yds, so there is no need to
convert to ft
(2)
They don't tell you what size tiles to use, so there
is no way to determine the number of tiles.
All you can do is show the AREA of the tiled surface
-------------------------------------------
Let +A%5By%5D+ = the area of the backyard
Let +A%5Bp%5D+ = the area of the pool
+A%5By%5D+-+A%5Bp%5D+ = the tiled area
-----------------------------------
+A%5By%5D+=+15%2A17+
+A%5By%5D+=+255+ yd2
and
+A%5Bp%5D+=+7%2A7+
+A%5Bp%5D+=+49+ yd2
-------------------
+A%5By%5D+-+A%5Bp%5D+=+255+-+49+
+A%5By%5D+-+A%5Bp%5D+=+206+ yd2
------------------------
The area of the tiles needed is 206 square yds

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

A homeowner's backyard is a rectangle with width 15 yards long and length 17 yards long. They plan to put in a square pool with side length 7 yards long in the backyard and then want to put tile in the rest of the entire backyard. How much tile do they need to buy?
Amount of tile=
please help. I have no idea what formulas to use and what exactly am I looking for, perimeter, volume, area?
The amount that can fit into