A= 1/4E
B= 4E
C= E-4
D= E+4
A+B+C+D=100
25/4E=100
hence, E=16
Answer:
The perimeter of room is 
Step-by-step explanation:
We are given the following in the question:
The length and width of a room are measured with uncertainties.
There is uncertainty of 0.1 m in each measurement.
Length = 
Width = 
Formula:
The perimeter of room is given by:

The uncertainties are also added and multiplied.
Thus,the perimeter of room is 
Answer:
30 is 120% of 25
Step-by-step explanation:
30 = 120% of y
× y = 30
After multiplying both sides by 100 and dividing both sides by 120, we have
y = 30 × 
y = 25
The answer to this question is D. or C.
Tanya put on 0.64 oz of frosting on each cupcake.