document.write( "Question 1041594: One small island community in the pacific currently uses 1.8 megawatts (MW) of electricity per year. All this electricity is generated from plants fired by natural gas. The island community plans to add x MW of offshore windmill generation capacity to its system. How many megawatts of windmill generation capacity must be built in order that 25% of the island community's total electricity usage comes from windmills? \n" ); document.write( "
Algebra.Com's Answer #656635 by jorel555(1290)![]() ![]() ![]() You can put this solution on YOUR website! If the island community currently uses 1.8 megawatts per year, then when they add windmill power, this figure will represent 75% of their total usage. So: \n" ); document.write( ".75n=1.8 \n" ); document.write( "n=1.8/.75=2.4 \n" ); document.write( "2.4-1.8=.6 megawatts need to be generated by windmill power. ☺☺☺☺ \n" ); document.write( " |