Answer:
Explanation:
Let x represent the number of Php 1 coins Jerome has. Then his total value is ...
0.25(30 -x) +1(x) = 12
7.5 +0.75x = 12
0.75x = 4.5 . . . . . subtract 7.5
x = 6 . . . . . . . . . . divide by 0.75
Jerome has 6 Php 1 coins and 24 25 cent coins.