Answer:
12.50y
Step-by-step explanation:
- If 1 ltr=12.50
- what about y ltrs
Therefore, 1 ltr= 12.50
y ltrs=?
you do cross multiplication
hence, 12.50 × y= 12.50y
total cost= sh.(12.50y)
Answer:
.10 + 11u or 11u + 10
Step-by-step explanation:
combine like terms:
. 5u + 6u = 11u
. 9 + 1 = 10
Answer:
Volume = length x width x height
Volume = 7 x 5 x 4
Volume = 140 cubic inches
Step-by-step explanation:
Answer:
x=-5
Step-by-step explanation:
since the y's cancel out, set the first equation equal to the second and solve like you'd normally do.
Answer:
1) 
, 2) The value of 
is 3, 3) The perimeter and the area of the rectangule are 18 feet and 18 square feet, respectively.
Step-by-step explanation:
Let be a rectangle with a length of 
feet and a width of 3 feet. The area (
), measured in square feet, and perimeter (
), measured in feet, formulas are, respectively:
(Eq. 1)
(Eq. 2)
1) Now, we assume that 
, then we reduce the system of linear equation into a sole linear equation:
(Eq. 3)
2) We proceed to solve for :
The value of is 3.
3) Lastly, we obtain the values of the perimeter and area:
The perimeter and the area of the rectangule are 18 feet and 18 square feet, respectively.
