Question

One day,students in Mr. Tate’s science lab noticed a strange moss growing on a cabinet. During the next few days, the moss grew quickly, covering desks,chairs,and the floor. Each day, the class recorded the growth of the moss. 1 on the first day, the moss covered 1 1/2 square feet. On the second day, it covered a total of 3 3/4 square feet.how much more surface did the moss cover on the second day?

Answer 1

Answer:

$\frac{9}{4}\ or\ 2\frac{1}{4}\ square feet$

Step-by-step explanation:

On the first day the moss covered

                              $=1\frac{1}{2}\ square feet$

                         $=\frac{3}{2}\ square\ feet$

One the second day the moss covered $=3\frac{3}{4}$ square feet

                                                      $=\frac{15}{4}\ square\ feet$

Extension of moss cover on second day

= Moss covered second day - Moss covered first day

$=\frac{15}{4}-\frac{3}{2}\\=\frac{15}{4}-\frac{3\times2}{2\times2} \\=\frac{15}{4}-\frac{6}{4}\\=\frac{9}{4} \\=2\frac{1}{4}\ square\ feet$