In mid-May, the river flowing through Moreland is five feet deep. By mid-June, the river is 10 feet deeper than mid-May. By mid-July, the river is three times deeper than mid-June. How many feet deep is the river by mid-July?
In mid-June, the river is 5+10=
<gadget id="calculator">5+10</gadget>
<output>15</output>
15 feet deep.
In mid-July, the river is 15*3=
<gadget id="calculator">15*3</gadget>
<output>45</output>
45 feet deep.

<result>45</result>