Albert0898
  • Albert0898
HELP ME understand problems like these. Any tricks, tips, formulas? Thanks! Umberto is a newspaper delivery boy. He delivers newspapers every day of the week. On Sunday, his first day on the job, he delivered newspapers to 18 houses in his neighborhood. Each day afterward, his delivery route included 7 more houses than it did the previous day. How many total newspapers did Umberto deliver in his first 2 weeks on the job?
Mathematics
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
on first day, no. of newspaper dilivered= 18 on second day = 18+7= 25 on third day = 25+7= 32 therefore, this forms an AP => 18, 25, 32 ........ where a=18 ; d=7 thus no. of newspaper been delivered in first 2 weeks i.e. 14 days = \[ \frac{ n }{ 2 }*[2a + (n-1)d]\]
anonymous
  • anonymous
put a= 18, n=14, d=7 and u will get the answer...
Albert0898
  • Albert0898
Ah yes! Thanks!

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