The number of SUVs in the lot is 19.
Explanation
Suppose, the number of SUVs in the lot is [tex]x[/tex]
As the number of ordinary cars is larger than the number of sport utility vehicles by 94.7% , so the number of ordinary cars will be: [tex]x+(x*0.947)=x+0.947x=1.947x[/tex]
Given that, the difference between the number of ordinary cars and the number of SUVs is 18. So the equation will be.....
[tex]1.947x-x=18\\ \\ 0.947x=18\\ \\ x=\frac{18}{0.947}=19.0073... \approx 19[/tex]
So, the number of SUVs in the lot is 19.