NEED HELP! worth 10 points:)
a house painting company charges $376 plus $12 per hour .Another painting company charges $280 plus $15 per hour. (a)how long is a job for which both companies will charge the same amount?(b) what will that cost be?
x equals number of hours company 1: 376+12x company 2: 280+15x set them equal to each other to get the amount of hours 376+12x=280+15x >>> than subtract 280 from both sides -280 -280 that equals 96+12x=15x than subtract 12x from both sides -12x -12x 96=3x than divide the whole equation by 3 32=x (a) 32 hours and to get part b just plug the 32 into one of the equations 376+12(32) 376+384 760 (b) $760 if you plug it into the other equation you get the same answer so that means that the answer is correct I hope this helps
