评论
打印
Mathematics
](http://upload.kekenet.com/2019/0412/43731555033075.png "SAT官方每日一题附答案和解析[数学](2019年4月12日)")
Caleb plans to install a patio of uniform width around a rectangular pool that measures 15 feet (ft) by 30 (ft). If Caleb would like the total area of the pool and the patio to be approximately 800 ft^2, what should the approximate width of the patio be?
A.3.4ft
B.5ft
C.6.7ft
D.18.4ft
