Dr. Burrows is measuring the weight of a substance for a science experiment. He added a mystery substance (m) to his experiment. Dr. Burrows used the equation 13.93 + m = 18.0 to find out how much he added. How much of the mystery substance (m) did he add to his experiment?(1 point)

Responses
5.17
5.17
5.07
5.07
4.07
4.07
4.17

1 answer

To find out how much of the mystery substance (m) Dr. Burrows added, we can solve the equation:

\[ 13.93 + m = 18.0 \]

To isolate \( m \), we subtract 13.93 from both sides:

\[ m = 18.0 - 13.93 \]

Now, we perform the subtraction:

\[ m = 4.07 \]

Therefore, the amount of the mystery substance (m) that Dr. Burrows added to his experiment is 4.07.