pepito can read a words in the patterns an= 4(n+7) + 20 , where n is the time in minutes. after 5 minutes, how many words can he read?
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Answer:
let n = 5
putting value of n in the pattern:-
An= 4(5+7) + 20
= 4(12) + 20
= 48 + 20
= 68 words
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