SOLUTION: a piece of writing paper weighs 3 g and an envelope, 5 g. I t costs 60 cents to send a letter weighing 20 g or less by air to Hong Kong. Mary has 60 cents worth of stamps. What is

Question 996109: a piece of writing paper weighs 3 g and an envelope, 5 g. I t costs 60 cents to send a letter weighing 20 g or less by air to Hong Kong. Mary has 60 cents worth of stamps. What is the msximum number of pieces of writing paper that she can use to write to her pen-pal in Hong Kong?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
P=weight of paper; E=weight of envelope
.
5g(E)+3g(P)=Total weight
.
Maximum pages in one envelope (E=1) with one stamp (Total weight=20g):
.
5g(1)+3g(P)=20g
3g(P)=15g
P=5
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ANSWER: The maximum number of pages with one stamp is 5.
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