What's 1/2 + 1/3? Y'all please help me . And when or if you can give me the answer can you do step-by-step on how you did that s
2 answers:
Answer:
5/6
Step-by-step explanation:
fractions! exciting :D
what you wanna do is get them to a common denominator, or bottom. In this case, the least common factor between 2 and 3 is six. To get that common denominator we should cross multiply-
That is, we'll take the denominator in 1/2, 2, and multiply it to both the numerator and denominator of our second fraction, making it 2/6. 2/6 is equal to 1/3 ! We can then do the same from 1/3 to 1/2, multiplying both 1 and 2 by three. That gives us 3/6 , which is equivalent to 1/2! I'mma include a visual below to make sure this makes sense because I may not be explaining it the best.
So, now we have 3/6 + 2/6 , and because we have common denominators we can just add across the top. That gives us 5/6 as the final answer.
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Answer:
Step-by-step explanation:
a. Given p=0.15.
-The mean of a sampling proportion of n=5000 is calculated as:
-The standard deviation is calculated using the formula:
Hence, the sample mean is μ=750 and standard deviation is σ=0.0050
b. Given that p=0.15 and n=1000
#The mean of a sampling proportion of n=1000 is calculated as:
#-The standard deviation is calculated as follows:
Hence, the sample mean is μ=150 and standard deviation is σ=0.0113
c. For p=0.15 and n=500
#The mean is calculated as follows:
#The standard deviation of the sample proportion is calculated as:
Hence, the sample mean is μ=75 and standard deviation is σ=0.0160
Answer:
It will take 39.27 gallons to repaint the barn.
Step-by-step explanation:
The image of the setup is obtained from online and attached to this solution.
The rectangular prism is a cuboid of
Length = 84 ft
Breadth = 38 ft
Height = 20 ft
And the triangular prism on top of the rectangular prism has a vertical height of 12 ft.
The surface area of the composite structure that is available for painting include the 4 sides of the top triangular prism and the four sides of rectangular prism
Two of the faces of the triangular prism are triangles with base of 38 ft and height of 12 ft.
The other two faces of the triangular prism are rectangles with length 84 ft and breadth of the hypoteneuse of the right angled triangle on top.
B² = 12² + 19²
B = 22.47 ft
Total Surface area of the faces of the rectangular prism is then
2×(84×20) + 2×(38×20) = 4880 ft²
Total surface area of the faces of the triangular prism is then
2×(0.5×12×38) + 2×(84×22.47) = 4,230.96 ft²
Total surface area = 4880 + 4230.96 = 9110.96 ft²
1 gallon of paint = 232 ft²
x gallons of paint = 9110.96 ft²
x = (1×9110.96/232) = 39.27 gallons.
Hope this Helps!!!
