Answer:
I think its C im not sure though.
Step-by-step explanation:
For this case, the first thing we must do is define variables.
We have then:
d: number of dimes
q: number of quarters
We now write the system of equations that models the problem.
We have then:
He has a total of 30 coins:
![d + q = 30](https://tex.z-dn.net/?f=%20d%20%2B%20q%20%3D%2030%20)
The toal value of Kyles coins is $ 4.80:
![0.1d + 0.25q = 4.80](https://tex.z-dn.net/?f=%200.1d%20%2B%200.25q%20%3D%204.80%20)
Answer:
A system of equations that can be used to find the number of dimes, d, and the number of quarters, q, kyes has is:
![d + q = 30](https://tex.z-dn.net/?f=%20d%20%2B%20q%20%3D%2030%20)
![0.1d + 0.25q = 4.80](https://tex.z-dn.net/?f=%200.1d%20%2B%200.25q%20%3D%204.80%20)