Question 1126001
If she has X dimes, she has X+2 quarters. 

X Dimes are worth  10X  cents
X+2 Quarters are worth 25(X+2) cents

10X+25X+50=225

35X=175 

X=5 X+2 = 7

5 dimes = 50 cents
7 quarters are 175 cents.