Problema Solution
A person has 8 coins consisting of half dollars and quarters. If the total amount of money is $2.50, how many of each coin are there?
Answer provided by our tutors
x+y=8.
0.5x+0.25y=2.5.
0.5x+0.25(8-x)=2.5
0.5x+2-0.25x=2.5
0.25x=0.5
x=0.5/0.25
=2.
y=6.
Number of half dollor coins =2.
Number of quarter dollor coins=6.