Thomas has finished 4 problems of his weekly math homework. If he needs to solve a total of 20 problems, which of the following shows the equivalent of the percentage of his math homework Thomas still needs to complete? A.20/100 B.80/100 C.0.20 D.0.8
To find the percentage of the math homework Thomas still needs to complete, we need to determine how many problems he has left to solve.
Thomas has finished 4 problems, and he needs to solve a total of 20 problems.
Therefore, the number of problems Thomas still needs to complete is 20 - 4 = 16 problems.
To determine the percentage, we use the formula (amount completed / total amount) * 100.
The amount completed is 4 problems, and the total amount is 20 problems.
The percentage of his math homework Thomas still needs to complete is (4 / 20) * 100 = 0.20 * 100 = 20.
Therefore, the equivalent of the percentage of his math homework Thomas still needs to complete is 20/100.
The correct answer is A. 20/100.