Question 524223
quarters =x
dimes= (1/5)x-1

she has 800 cents

25x+10((1/5)x-1) = 800
25x+2x-10=800

27x=810
/27
x=30 quarters

dimes = (1/5)*30 -1
dimes= 5

CHECK
5*10 + 30*25
50+750=800