if we take 4100 to be the 100%, what is 870 off of it in percentage?

Answer:
answer : 164 pounds
Step-by-step explanation:
total weight of five computers
163 x 5 = 815 pounds
the weight of the fifth one = total
weight - other four
815-155-160-165-171=164 pounds
hope it helps :)
If

were incorrect, it means that

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Chef Rita can feed 20 people.
Explanation:
If 22 pancakes can feed 8 people, then 11 pancakes can feed 4 people (divide both by 2). Since 55 is 11x5, you multiply 4 times 5 to get 20.
Hope this helps!
Making a shape bigger and smaller