document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1128300>Question 1128300</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Situated in the northeastern portion of Oriental Mindoro, Naujan Lake is a freshwater<BR>\n" );
document.write( "lake that has a surface area of 82 km2<BR>\n" );
document.write( ". During October 2018, the lake evaporation was<BR>\n" );
document.write( "measured to be 90 mm. Tigbao, Malbog, Maambog, and Cusay Creeks flow into the lake.<BR>\n" );
document.write( "During the same month, the total inflow to the lake from these creeks was 35.90 m3<BR>\n" );
document.write( "/s. At<BR>\n" );
document.write( "the same time, the lake has only one outlet, Butas River, which has a total outflow of 40.2<BR>\n" );
document.write( "m<BR>\n" );
document.write( "3<BR>\n" );
document.write( "/s from the lake. Also, for the same month, a water level increase of 100 mm for the<BR>\n" );
document.write( "lake was observed. Using the water balance equation, what was the precipitation (in mm)<BR>\n" );
document.write( "during that month?<BR>\n" );
document.write( "Please help me with this my teacher gave this hw without discussing to us about it i tried to search for the formula but i dont know which is the correct one if possible can anyone assist me with this quesion? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #744774 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=744774\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I do not know of a formula,<BR>\n" );
document.write( "and different teachers may use different formulas.<BR>\n" );
document.write( "I believe formulas are for computers,<BR>\n" );
document.write( "who cannot think for themselves.<BR>\n" );
document.write( "Humans should be able to reason their way to their own formulas.<BR>\n" );
document.write( " <BR>\n" );
document.write( "We know that<BR>\n" );
document.write( "water entered the lake<BR>\n" );
document.write( "X) from rain, and <BR>\n" );
document.write( "A) from the creeks flowing into the lake, and<BR>\n" );
document.write( "water exited the lake<BR>\n" );
document.write( "B) through evaporation, and<BR>\n" );
document.write( "C) through the Butas River.<BR>\n" );
document.write( "That caused<BR>\n" );
document.write( "D) an increase in the amount of water in the lake.<BR>\n" );
document.write( "We can figure that<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%2Bblue%28A%29-green%28B%29-blue%28C%29=red%28D%29 ALIGN=MIDDLE  ALT=\"X%2Bblue%28A%29-green%28B%29-blue%28C%29=red%28D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(water entering - water leaving = water increase in the lake).<BR>\n" );
document.write( " <BR>\n" );
document.write( "It would make sense to express all those amounts of water in cubic meters.<BR>\n" );
document.write( "That would take some calculations, because<BR>\n" );
document.write( "the water entering and exiting through creeks and river is measured in cubic meters per second,<BR>\n" );
document.write( "while the precipitation and evaporation are given in mm, apparently as total for the whole month.<BR>\n" );
document.write( " <BR>\n" );
document.write( "The surface of the lake in square meters is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2882km%5E2%29%281000m%2Fkm%29%281000m%2Fkm%29=%2282%2C000%2C000%22 ALIGN=MIDDLE  ALT=\"%2882km%5E2%29%281000m%2Fkm%29%281000m%2Fkm%29=%2282%2C000%2C000%22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E2 ALIGN=MIDDLE  ALT=\"m%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The level of the lake rose by<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100mm%281m%2F%221000+mm%22%29=0.1m ALIGN=MIDDLE  ALT=\"100mm%281m%2F%221000+mm%22%29=0.1m\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The water increase in the lake, in cubic meters can be estimated as<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28D%29=%2882km%5E2%29%28100mm%29=%2282%2C000%2C000%22 ALIGN=MIDDLE  ALT=\"red%28D%29=%2882km%5E2%29%28100mm%29=%2282%2C000%2C000%22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E2%280.1m%29=red%28%228%2C200%2C000%22%29 ALIGN=MIDDLE  ALT=\"m%5E2%280.1m%29=red%28%228%2C200%2C000%22%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E3 ALIGN=MIDDLE  ALT=\"m%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The evaporation from the lake, in cubic meters can be estimated as<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=green%28B%29=%2882km%5E2%29%28900mm%29=%2282%2C000%2C000%22 ALIGN=MIDDLE  ALT=\"green%28B%29=%2882km%5E2%29%28900mm%29=%2282%2C000%2C000%22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E2%280.09m%29=green%28%227%2C380%2C000%22%29 ALIGN=MIDDLE  ALT=\"m%5E2%280.09m%29=green%28%227%2C380%2C000%22%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E3 ALIGN=MIDDLE  ALT=\"m%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <BR>\n" );
document.write( "The amounts of water coming in from the creeks and leaving through the Butas River are given in cubic meters per second,<BR>\n" );
document.write( "and we have to calculate for a 31-day month with 24-hour days, and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=31day%2824hour%2F%221+day%22%29%2860minute%2F%221+hour%22%29%2860seconds%2F%221+minute%22%29=%222%2C678%2C400%22 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=seconds ALIGN=MIDDLE  ALT=\"seconds\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The total inflow in cubic meters can be calculated as<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=blue%28A%29=%2835.9m3%2F%221+second%22%29%2A%222%2C678%2C400%22 ALIGN=MIDDLE  ALT=\"blue%28A%29=%2835.9m3%2F%221+second%22%29%2A%222%2C678%2C400%22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=seconds=blue%28%2296%2C154%2C560%22%29 ALIGN=MIDDLE  ALT=\"seconds=blue%28%2296%2C154%2C560%22%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E3 ALIGN=MIDDLE  ALT=\"m%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The total outflow in cubic meters can be calculated as<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=blue%28C%29=%2840.2m%5E3%2F%221+second%22%29%2A%222%2C678%2C400%22 ALIGN=MIDDLE  ALT=\"blue%28C%29=%2840.2m%5E3%2F%221+second%22%29%2A%222%2C678%2C400%22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=seconds=blue%28%22107%2C671%2C680%22%29 ALIGN=MIDDLE  ALT=\"seconds=blue%28%22107%2C671%2C680%22%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E3 ALIGN=MIDDLE  ALT=\"m%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <BR>\n" );
document.write( "Expressed all in cubic meters, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%2Bblue%28A%29-green%28B%29-blue%28C%29=red%28D%29 ALIGN=MIDDLE  ALT=\"X%2Bblue%28A%29-green%28B%29-blue%28C%29=red%28D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > looks like<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%2Bblue%28%2296%2C154%2C560%22%29-blue%28%22107%2C671%2C680%22%29-green%28%227%2C380%2C000%22%29=red%28%228%2C200%2C000%22%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X=red%28%228%2C200%2C000%22%29-blue%28%2296%2C154%2C560%22%29%2Bblue%28%22107%2C671%2C680%22%29%2Bgreen%28%227%2C380%2C000%22%29=%2227%2C097%2C120%22 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "That volume of water, expressed as precipitation falling over the<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=82km%5E2=%2282%2C000%2C000%22 ALIGN=MIDDLE  ALT=\"82km%5E2=%2282%2C000%2C000%22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E2 ALIGN=MIDDLE  ALT=\"m%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > of lake surface is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=27097120m%5E3%2F82000000m%5E2=0.33045m=about ALIGN=MIDDLE  ALT=\"27097120m%5E3%2F82000000m%5E2=0.33045m=about\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28330mm%29 ALIGN=MIDDLE  ALT=\"highlight%28330mm%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );