Including 2753

Martina helped the coach write diplomas. It took her 3 minutes to write her first diploma and her next 2 minutes. How many minutes will it take her to write n = 14 diplomas/including the first/if she works at this pace?

Correct answer:

x =  29 min

Step-by-step explanation:

$$\begin{gathered} n=14 \\ {t}_1=3\text{min} \\ {t}_2=2\text{min} \\ x=t_1+t_2\cdot (n-1)=3+2\cdot (14-1)=29\text{min} \end{gathered}$$

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