Answer: a) 
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 ":
Now, According to question, The new area of the room is 175% of the previous area.
So, a) New area of the room becomes,
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
Answer:
According to this figure .
7x-2=6x+18
x=20
Step by Step Explanation:
7x-2+y=180
y=180-138
therefore angle 1 is equal to 42 degrees
The scale drawing of the computer lab will have a length of 4 centimeter and a widtgh of 6 centimeter.
H = hour
A = 60 + (25h) = ?
B = 120 + (20h) = ?
60 hours because 28 hours for company A x 25 dollars = 700 + starting fee is 60
28 x 25 = 700 + 60 = 760
32 hours for company B x 20 dollars = 640 + starting fee is 120
32 x 20 = 640 + 120 = 760
32 hours + 28 hours = 60 hours all together. It takes 60 hours cost the same
A= 25 x 7 + 60 = 235
25 x 7 = 175 + 60 = 235
B = 20 x 7 + 120 = 260
20 x 7 = 140 + 120 = 260
235 < 260
The cheaper one is A with 235
9 numbers of nickels
13 numbers of quarters
