3 years ago

It takes Cindy 3/4 of an hour to complete a puzzle. how many puzzles can Cindy finish in 3 hours ? answer this for 27 points

2 answers:

7 0

4 puzzles because if it takes 3/4 hour for one puzzle, keep adding it to it self, and you get 4 puzzles. The numbers 3/4 + 3/4 = 1 1/2 + 3/4 = 2 1/4 + 3/4 = 4

kipiarov [429]3 years ago

6 0

The 3 hour Cindy will finish 4 different puzzles

hope this helps

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An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o

GrogVix [38]

$\text{The general term of an arithmetic sequence:}\ a_n=a_1+(n-1)d\\\\a_n-n-th\ term\\a_1-first\ term\\d-common\ difference\\\\\text{We have}\ t_n=-5+(n-1)78.\ \text{Therefore}\ t_1=-5\ \text{and}\ d=78\\\\\text{The recursive formula of the sequence:}\\\\\left\{\begin{array}{ccc}t_1=-5\\t_n=t_{n-1}+78\end{array}\right$