Caleb parks his car on the 2nd floor below ground and works
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To determine how much will it take to clean a 120ft driveway considering that it took him 2hs to clear 10ft and that the cleaning rate is constant, you can use cross multiplication:
10ft______2hs
120ft_____xhs
If the cleaning rate is the same, then the ratios between both are the same:
From this expression, you can determine the time by multiplying both sides of the equal sign by 120
It will take him 24 hours to clear the 120ft driveway.
The due date of the promissory note is May 24th 2013.
Data;
- Present Value (PV) = $3600
- Interest = $370
- Future Value (FV) = PV + I = $3600 + $370 = $3970
To calculate the due date of the note, we can use the formula of future value of the note.
Let's take the natural log of both sides
This is approximately 12 months and 9 days.
The due date of the promissory note is May 24th 2013.
Learn more on promissory note here;