Place value and decimals are connected. as are the properties of it. Without place value, there would be no decimals. By moving the decimal places up and down the scale, there can be a change in decimals. Adding 10 would move the decimal place 1 spot to the right, while subtracting 10 would move the decimal place 1 space to the left. Hope this helped. :D
Answer:
(4s-3)ft
Step-by-step explanation:
The 3 sides of the room will be "s" ft long. The 4th side, the one with the doorway will be "s-3" ft long, the -3 because of the doorway. Then you simply add all the sides of the doorway to get the length for the metal strip.
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