Answer:
87.5.
Step-by-step explanation:
Let's call that number x. We have that 20% of x is 35, that is x*0.2 =35. Now, 50% = 0.5. Then
[tex]0.2x = 35[/tex]
[tex]x = \frac{35}{0.2}[/tex]
[tex]0.5*x = 0.5*\frac{35}{0.2}[/tex]
[tex]0.5*x = \frac{35*0.5}{0.2}[/tex]
[tex]0.5*x = \frac{17.5}{0.2}[/tex]
[tex]0.5*x = 87.5[/tex].
Then, 50% of that number x is 87.5.
