Mathematics: SOMEONE PLZZ HELP, I HAVE A TEST AND DONT KNOW HOW TO DO THIS!!

SOMEONE PLZZ HELP, I HAVE A TEST AND DONT KNOW

yolo1143

04.11.2020

a) $\frac{175}{100}xy\\\\=1.75xy\\\\$

b) By 0.75 square meters the new area is increased.

Step-by-step explanation:

Let the length of room be l

Let the breadth of room be 'b'

As we know the formula for "Area of rectangle ":

$Area=Length\times breadth\\\\Area=l\times b$

Now, According to question, The new area of the room is 175% of the previous area.

So, a) New area of the room becomes,

$\frac{175}{100}xy\\\\=1.75xy\\\\$

So, it means Length of the room is increased by 175%, because of which the area is increased by 175%.

b) By how many square meters has the area of Megan's room increased

$1.75xy-1xy=0.75\\\\\text{So, by 0.75 square meters the new area is increased.}$

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