document.write( "Question 1196753: A fish tank has a base area of 45 cm squared and is filled with water to a depth of 12cm. If the height of the tank is 25 cm, how much more water will be needed to fill the tank to the brim?
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Algebra.Com's Answer #829733 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The tutor @ewatrrr has a good approach. Here's a slightly different method.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The water level is 12 cm \n" ); document.write( "The tank's full height is 25 cm \n" ); document.write( "The difference is 25-12 = 13 cm\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "We have a rectangular block of air, above the water, that has a base area of 45 cm² and height 13 cm\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The volume of this block of air is \n" ); document.write( "volume = (area of base)*(height) .... applies to any prism \n" ); document.write( "volume = (45 cm²)*(13 cm) \n" ); document.write( "volume = (45*13)*(cm²*cm) \n" ); document.write( "volume = 585 cm³ \n" ); document.write( "volume = 585 cubic cm \n" ); document.write( "volume = 585 mL ......... Recall that 1 cm³ = 1 mL \n" ); document.write( "This is the volume of the block of air, and also the amount of water needed to fill the tank.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer: Either 585 cubic cm or 585 mL \n" ); document.write( " \n" ); document.write( " |