Question

Mr. rameriz is buying square stones to cover his patio. The patio measures 7.5 feet by 9 deer. Each stone is 6 inches on a side. If Mr. rameriz buys 275 stones, are there enough stones to cover the patio

Answer 1

The first thing we must do in this case is to calculate the area of the patio.
 We have then that:
 A = (7.5) * (9) = 67.5 feet ^ 2.
 Then, we calculate the area of each stone:
 Ap = (6) * (6) = 36in ^ 2
 We make the conversion to feet:
 Ap = (36) (in ^ 2) * (1/12) ^ 2 (foot / inches) ^ 2
 Ap = 0.25 feet ^ 2
 Finally we have that the area covered by all the stones is:
 (0.25) * (275) = 68.75 feet ^ 2
 We observed that:
 68.75 feet ^ 2> 67.5 feet ^ 2
 Answer:
 there are enough stones to cover the patio
 68.75 feet ^ 2> 67.5 feet ^ 2