Daniel bought a piggy bank. On the first day, he put in 15andeverydayheadds2. Is it possible for Daniel to save exactly $ 29? If so, when?
To determine if Daniel can save exactly 29,wemodelhissavingsasanarithmeticsequence.</p><ul><li><strong>Step1:Identifythegiveninformation</strong></li></ul><p>Initially,Danielputsin15, and he adds 2daily.Wearelookingforthedaywhenthetotalsavingsequals29.
- Step 2: Set up the sequence formula
The n-th term of an arithmetic sequence is given by:
an=a1+(n−1)⋅d
Where:
- a1=15, the amount on the first day
- d=2, the daily addition
- an=29, the amount we want to achieve
Set up the equation:
29=15+(n−1)⋅2
Simplifying:
29=15+2n−2
29=13+2n
16=2n
n=8
Therefore, Daniel will have exactly 29ontheeighthday.</p><p><strong>Conclusion:</strong></p><p>Yes,itispossibleforDanieltosaveexactly29, and it will occur on the eighth day.