Answer:
x = 37.5
Step-by-step explanation:
Find the ratio.
[tex]\frac{x}{x+25}=\frac{30}{50}[/tex]
Cross-multiply, distribute.
[tex]50x=30(x+25)\\\\50x=30x+750[/tex]
Subtract 30x from both sides.
[tex]20x=750[/tex]
Divide both sides by 20.
[tex]x=37.5[/tex]
