Out of 20 creepy-crawly creatures in a room, 80% are flies and 20% are spiders.

If S% of the total legs belong to spiders, what is S?

Respuesta :

I Believe that S=25%

Answer: S=25


Step-by-step explanation:

Given: Total creepy-crawly creatures in a room=20

Also, there are 20 % are spiders.

Since 20%=0.2

The number of spiders=[tex]0.2\times20=4[/tex]

Then number of flies= 20-4=16

Since flies has 6 legs, then the number of legs in all flies=[tex]6\times16=96[/tex]

Also, spider has 8 legs, then the number of all legs in spiders= [tex]8\times4=32[/tex]

Total legs of all creepy crawls= 96+32=128

The percent of spider legs=[tex]\frac{32}{128}\times100=25\%[/tex]

hence, if S% of the total legs belong to spiders, then S=25