So it tell us that he is able to get 5 hits out of 7 and to find how much he could make if 210 chances
[tex] \frac{5}{7} = \frac{x}{210} [/tex]
We solve what can be solved
[tex] 0.7 = \frac{x}{210}[/tex]
Then we leave our variable alone
[tex]0.7 *210=x[/tex]
Last we solve
[tex]x=147[/tex]
In this case we can see that he could make 147 hits out of 210 bats.
