Question 719592
P=2L+2W
L=3W+5
250=2(3W+5)+2W
250=6W+10+2W
250=8W+10
8W=250-10
8W=240
W=240/8
W=30 ANS. FOR THE WIDTH.
L=3*30+5
L=90+5
W=95 ANS. FOR THE LENGTH.
PROOF:
250=2*95+2*30
250=190+60
250=250