Problema Solution
Ethan opened his piggy bank to find 50 pieces of $5 and $2 notes. If the total value of all the notes is more than $132, find the minimum number of $5 notes he has.
Answer provided by our tutors
Let 'x' represent the number of $5 notes then '50 - x' is the number of $2 notes.
5x + 2(50 - x) > 132
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click here to see the inequality solved for x
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x > 10.67
The minimum integer number larger then 10.76 is 11.
This means the minimum number of $5 notes is 11.