Question

Erica earned a total of $50,450 last year from her two jobs. The amount she earned from her job at the store was $1,250 more than three times the amount she earned from her job at the college. How much did she earn from her job at the college?

Answer 1

Let the amount earned from store be x and amount earned from college be y.

As per the first condition:

`x+y=50450`

As per the second condition:

`\begin{gathered} x=3y+1250 \\ x-3y=1250 \end{gathered}`

Subtract the two equations to get:

`\begin{gathered} x+y=50450 \\ - \\ x-3y=1250 \\ 4y=49200 \\ y=12300 \end{gathered}`

She earned 12300$ from college and 38150$ from store.

Hence the answer is 12300$