Answer:
8
Step-by-step explanation:
3v-9=7+2v-v
3v-9=7+v
3v-v-9=7
2v-9=7
2v=7+9
2v=16
v=16/2
v=8
50 coins
if there is 1/5 more 1 dollar coins than quarters that means 1/5 of the total number is equal to 10, and if 1/5 is 10 that means 5*10=50 is the total number
1 2/3 (5 2/7)
