72 minutes
We require their hourly rate of work
Maria cleans the house in 1 hour
Sasha cleans of the house in 1 hour
let x be the time it takes both to clean the house
+
=
multiply through by 6x
3x + 2x = 6
5x = 6 ⇒ x =
Together they can clean the house in 72 minutes
The given dimensions of 9.5, 6, 7, and 6.5 cm gives the following
perimeter and area of the trapezium.
The perimeter of a trapezoid is given as follows;
Perimeter = The sum of the lengths of the sides
Which gives;
Perimeter = 6 + 7 + 6.5 + 9.5 = 29
The perimeter of the trapezoid =<u> 29 cm</u>
The area of the trapezoid is given as follows;
Which gives;
The area of the trapezoid = 49.5 cm²
Learn more about the area and perimeter of geometric shapes here:
