![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The water level of a swimming pool is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=44a97ebc73483b2a2d0db9ead877b39c.png\")
.
The water evaporation rate is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ff2e1fbd65d3f13d5930688fe7800a8f.png\")
.
Therefore evaporation water level for 1 days is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2d7b6ee90bcca623892795c238ab6dc6.png\")
.
The evaporation water level for 4 days is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d5ca5d90e2fd520cfd37efe6f71e3842.png\")
.
The water level of a swimming pool will be after 4 days ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b8e27b080b4a07190dddc9afc82d8d15.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The water level of a swimming pool will be after 4 days 2.74 feet.