Solve dU/dt = d^2U/dx^2,0 < x < 6, t > 0, subject to the conditions U(0,t) = U(6,t)=0, U(x,0)=( 1 if 0<= x <= 3 & 0 if 3 <= x <= 6). Interpret physically.

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%