Answer:


Subtracting 0.03x from both sides we got:

And now subtracting 925 from both sides we got:

And dividing by 0.02 both sides we got:

So then we need a total 16250 for the amount of sales in order to have the same amount for Ramon and Teresa at the end of the week
Explanation:
For this case we can assume that the total salary for Teresa T is given by:

Where x represent the amount of sales. And similarly for the total salary of Ramon we have:

We want to find what amount of sales, x, will result in each of them earning the same amount for the week and we can set up the following equation:


Subtracting 0.03x from both sides we got:

And now subtracting 925 from both sides we got:

And dividing by 0.02 both sides we got:

So then we need a total 16250 for the amount of sales in order to have the same amount for Ramon and Teresa at the end of the week