Question

Write a system of equation to this real world situation .Number 1

Answer 1

Let be "q" the number of quarters Kiara has and "d" the number of dimes she has.

According to the information given in the exercise, the total number of dimes are quarters Kiara has is 100. Based on this, you can set up the following equation, which will be Equation 1:

`q+d=100`

The total value Kiara has is $19, then knowing that 1 quarter is $0.25 and 1 dime is $0.10, you can set up the Equation 2:

`0.25q+0.10d=19`

Then, the System of equation for this situation is:

`\begin{cases}q+d=100 \\ 0.25q+0.10d=19\end{cases}`

The answer is:

- Equation 1:

`q+d=100`

- Equation 2:

`0.25q+0.10d=19`