Answer:
There are 40 students in total in the recycling club.
Step-by-step explanation:
Let the total number of students in the recycle club be 'x'.
Given:
Percent of students as 6th graders = 45% of 'x'
Number of students as 6th graders = 18
Now, as per question:
45% of total students = 18
[tex]45\%\times x=18\\\\\frac{45}{100}\times x=18\\\\0.45x=18\\\\x=\frac{18}{0.45}\\\\x=40[/tex]
Therefore, there are 40 students in total in the recycling club.