Question 215899
CONVINCING ARGUMENT:
In order for his claim to be correct, the number quarters, half-dollars and one dollar bills need to be whole numbers and this does not happen.  When we solve our equation, we end up with 13 1/3 half dollars, so his claim must be flawed.

Let x=number of half dollars; 0.5x=value of half dollars
Then 2x=number of quarters;  0.25(2x)=0.5x=value of quarters
And 0.5x= number of dollar bills; 1(0.5x)=0.5x=value of dollar bills
So, our equation to solve is:
0.5x+0.5x+0.5x=20
1.5x=20  divide each side by 1.5
x=13 1/3 --------------number of half dollars NO WAY!!!!!


Hope this helps---ptaylor