A person has 60% of their capital invested at a monthly rate of 0.85% and the remainder at 1% per month. Explain the value of the capital initially invested, disregarding the cents, knowing that at the end of the first month the accumulated interest was R$236.77.

0.60 * C * 0.0085 + 0.40 * C * 0.01 = 236.77 Simplifying this equation, we have: 0.0051C + 0.004C = 236.77 0.0091C = 236.77 C ≈ 26019 Therefore, the capital initially invested, disregarding the cents, is approximately R$26,019.