<span>L=3W
12=3w*w
12=3w</span>²<span>
W</span>²<span>=12/3
W</span>²<span>=4
W=2
L=3*2=6
Check ~
12=6*2
12=12</span>
Answer
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Answer:
d=2
Step-by-step explanation:
As we know the formula for arithmetic sequence
from the fromula, we can see the difference is 2.
Hence
Still need 13-5=8 blankets
8/20=4/10=0.4
0.4*100%=40%