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It takes robert one minute to gather his materials to begin his homework, then an addictional minute for each problem on his assignment. If it takes him 20 minutes to complete t…

It takes robert one minute to gather his materials to begin his homework, then an addictional minute for each problem on his assignment. If it takes him 20 minutes to complete t…
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It takes robert one minute to gather his materials to begin his homework, then an addictional minute for each problem on his assignment. If it takes him 20 minutes to complete the assignment, how many problems were on his assignment?

User Timon
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1 Answer

4 votes
so 1 minute to gather
1 minute per problem
so assumming the gathering time is included
1+1timesnumberofproblems=20
subtract 1 from both sides
1timesnumberofproblems=19
numberofproblems=19

he has 19 problems
User Michel Feldheim
by
8.0k points
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