Respuesta :

x is the 4%
y is the 5%

x+y=7600
y=7600-x

0.05y=338-0.04x

5y=33800-4x
y=7600-x

Solve with substitution

5(7600-x)=33800-4x
38000-5x=33800-4x
4200=x

Answer:

4200

Step-by-step explanation: