A wire, 224 cm long, is cut into 3 pieces. The first is twice as long as the second. The third is one-half as long as the second. How long is the second piece?
first=2x third=x/2 x+2x+(x/2)=5x/2 7x/2=224 multiply by 2 (7x/2)*2=224*2 5x=448 x=64 x=64 cm the second part first part =2x=64*z=128 cm third part=x/2=64/2=32 cm
