PLEASE HELP im super confused

Answer:
7 Quarters and 3 dimes
Step-by-step explanation:
You have to find how many quarters (0.25) and dimes (0.10) are in $2.05. There are 7 quarters, which will add up to $1.75. You can't have 8 quarters because then you would have 2 dollars, and there wouldn't be enough for a dime, there would only by 5 cents left, or a nickle. Then, you find out how many nickels you need, which is 3.
.10x3=.30. 1.75+0.3=2.05.
I hope you understood:)
Answer:
x=quarters
x-4 =dimes
.25x+.10(x-4)=2.05
.25x + .10x-.40=2.05
.35x = 2.45
divide by 0.35, both sides
x=7
x-4=3
7 quarters ($1.75)
3 dimes ($0.30
Total=$2.05
so you need 7 quarters and 3 dimes
Step-by-step explanation: