Question

justin is redoing his bathroom floor with tiles measuring 6 in. by 13 in. the floor has an area of 8,500 in2. what is the least number of tiles he will need?

Answer 1

Frist you do 6*13

Which equals 78

Then you do 8,500/78

Which equals 108.974358974

Then you round it to 109

and there's your awnser

Answer 2

(6*13)x=8500
     78x=8500
     $\frac{78x}{78}$=$\frac{8500}{78}$
     x≤108
 so you would need 109 tilles to cover the whole floor