Answer:
Step-by-step explanation:
breadth = x
length = 2x
Perimeter = 540m
2*( length + breadth ) = 540
2 *(2x + x) = 540
3x = 540/2
3x = 270
x = 270/3
x = 90 m
Breadth = 90m = 90 *100 = 9000 cm
Length = 2*90 = 180 m = 180 * 100 = 18000 cm
No.of bricks = Area of room/ area of one brick
= 9000 * 18000 / 20 * 12
= 675000 bricks
In days she used 55.8 pounds in total
so your answer is 55.8
Answer:
-2
Step-by-step explanation:
18+-20
-2
Step-by-step explanation:
3×10^10 is the scientific notation of 30000000000
Answer:
Step-by-step explanation:
The area would be 25 square centimeter
