Question

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.

Answer 1

Answer:

B and C

Explanation:

Number of the problems in total = 20

Number that he has finished = 4

So, the number of homework Thomas still needs to complete

=20-4

=16

Expressing this as a percentage, we have:

$\begin{gathered} \text{Percentage}=\frac{16}{20}\times100 \\ =0.8\times100 \\ =80\% \end{gathered}$

Therefore, the equivalent of the percentage obtained above are:

$\begin{gathered} (B)0.80 \\ (C)\frac{80}{100} \end{gathered}$