Answer:
Step-by-step explanation:
Here, we want to find the number of each type of coin
Let the number of quarters be q and the number of dimes be d
The sum of these two is 24
Mathematically, that would be:
While a quarter is worth 25 cents, a dime is worth 10 cents
Since $1 = 100 cents
The total number of cents in $3.60 is 3.60 * 100 = 360 cents
For q quarters, we have a total value of 25 * q = 25q cents
For d dimes, we have a total of 10 * d = 10d cents
The sum of both is 360 cents
We have that mathematically as:
We thus have the following system of linear equations to solve:
From the first equation in the system:
Substitute this into the second equation, we have it that:
Now, to get d, we simply subtract this value from 24
Mathematically, that would be:
He has 8 quarters and 16 dimes