The width of rectangle is 10 cm.
Step-by-step explanation:
Perimeter of rectangle = 60 centimeters
Let,
w be the width of rectangle.
The length of a rectangle is twice the width.
length of rectangle = 2w
We know that;
Perimeter = P = 2(Length+Width)
P = 2(2w+w)
Solving the Equation;
Dividing both sides by 6;
The width of rectangle is 10 cm.
Keywords: perimeter, rectangle
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Answer:
7.5 ounces
Step-by-step explanation:
Answer:
3c+12
Step-by-step explanation:
Are of rectangle = Length * Width
Given the following data
Length: (c+4) ft
Width: 3 ft
Area of the rectangle = 3 (c+4)
Expand
Area of the rectangle = 3(c) + 3(4)
Area of the rectangle = 3c + 12
hence the expression in simplest form for the area of the rectangle is 3c+12
Answer:
true
Step-by-step explanation:
Answer:
a ) n = 1667
b) n= 5192
c) n=1500
Step-by-step explanation:
c= 95%
Expected value = E.v= 300 , 170 , 100
R = 35000-10000=25000
σ = R / 4 = 25000 / 4 = 6250
For sample size
b = ( zα/2 / 2σ / E )^2
where 1-α = 0.95 and
zα/2 = 1.96
then putting values one by one of E we get
E.v = 300
n= 1667
E.v = 170
n=5192
E.v =100
n= 1500
so for
a ) n = 1667
b) n= 5192
c) n=1500
