Final answer:
To estimate 47% of 77, multiply 77 by 0.47. The estimated value is approximately 36.19.
Step-by-step explanation:
To estimate the percent of a number, we multiply the number by the percentage as a decimal. In this case, to estimate 47% of 77, we multiply 77 by 0.47. This gives us an estimated value of 36.19. Therefore, 47% of 77 is approximately 36.19.