If Ann cleans in 12 hours then she cleans
of the apartment per hour. Similarly Liz cleans
of the appartment per hour. So together then can clean
of the apartment for hour. Therefor it will take them
hours to clean.
The general formula
can be used as a check if needed.
It equals 2(x+1) blah blah blah
Answer:
1 y=-1/10x
2 y=-x-8
3 y= 7/3x or 2 1/3x
Step-by-step explanation:
1 -x=10y
divide -x and 10 by 10
2 y+8=-x
subtract 8
3 -4+7x+4=3y
divide everything by 3
Given that the length of side of shaded area is 1 ft.
Making equal square of size of shaded area we have:
Horizontally number of shaded area are 12
Vertically number of shaded area are 11
So, the horizontal length of big rectangle is 12 ft.
The vertical length of big rectangle is 11 ft.
Area of big rectangle is 12*11
Area of given rectangle is 132 sq.ft.
