Jim's weekly pay is two thirds of Alicia's. Together they earn $800 per week. What is each person's weekly pay?

a. A: $320; J:$480
b. A; $480; J:$320
c. A;$420; J:$380
d. A:$380; J:$420

Let the weekly pay of Alicia be x.
Then, the weekly pay of Jim is

Together, they have $800. That means that

Solve for x to get the weekly pay of Alicia.

Then to find the weekly pay of Jim, find two thirds of the pay of Alicia :)