Question

1 și 2 repede va rog coroana

Answer 1

1. AP=2X; AB=5X AP+PB=AB; 2X+1=5X⇒3X=1⇒X=1/3⇒AB=5/3
2. PB=3X; AP=11X⇒AP+PB=AB⇒11X+3X=35⇒14X=35⇒X=2,5⇒AP=27,5

Answer 2

1.AP/AB=2/5=>AB=5AP/2
AP=AB-PB=>AB=5(AB-1)/2
2AB=5(AB-1)=>2AB=5AB-5 AB=5/3
2.PB/AP=3/11=>AP=11PB/3
AP=AB-AP=>AP=11(35-AP)/3
3AP=385-11AP=>14AP=385
AP=385/14