Question

I'm not understanding this very well can anyone help me?

Answer 1

Answer:

x = 25

Step-by-step explanation:

Noting that these figures are similar, we set up and solve an equation of ratios:

x       30

---- = ------

15       18

Cross multiplying, we get:

18x = 30(15), or 3x = 5(15) = 75.  Then x must be 25.