Mathematics, 21.06.2021 08:50 haydenbq
To paint interior walls, a person charges 50¢ per square foot plus the cost of the paint. For a recent job, the paint cost $100 and the total bill was $475. The person must have painted ft^2.
Answers: 2
![\Rightarrow 475=100+0.5\times x\quad [x=\text{area in square foot}]\\\Rightarrow 375=0.5x\\\Rightarrow x=750\ ft^2](/tpl/images/1380/1614/fd60e.png)
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To paint interior walls, a person charges 50¢ per square foot plus the cost of the paint. For a rec...
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