Wayne has 20 pieces of notes. The type of denominations are $2, $5 and $10. The number of $2notes and $10 notes is the same. The total value of these notes is $110. How many pieces of denomination does he have?

Guest Apr 10, 2020

#1**+3 **

Let the number of $2 and $10 notes = x

Then the number of $5 notes = 20 - 2x

So we have this equation

2x + 5 (20 - 2x) + 10x = 110 simplify

2x + 100 - 10x + 10x = 110

2x + 100 = 110 subtract 100 from both sides

2x = 10 divide both sides by 2

x = 5

And

20 - 2(5) = 10

He has 5 $2 notes

He has 10 $5 notes

He has 5 $10 notes

CPhill Apr 10, 2020