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chizoba
09.01.2020 •
Mathematics
An assembly line worker at rob bicycle factory adds a seat to a bicycle at a rate of 2 seats every 12 minutes write and solve a proportion to determine how long it will take to add 16 seats
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Ответ:
6N = T
They will take 96 minutes to add 16 seats.
Step-by-step explanation:
In the factory, the workers add bicycle seats at a rate of 2 seats every 12 minutes.
If the number of seats they add is N and the number of minutes it takes is T, then they are proportional i.e. N ∝ T.
⇒ N = kT ........... (1)
Now, N = 2 for T = 12 minutes.
So, from equation (1), 2 = 12k
⇒![k = \frac{1}{6}](/tpl/images/0448/0563/d4520.png)
Therefore, the equation (1) becomes![N = \frac{1}{6}T](/tpl/images/0448/0563/04128.png)
⇒ 6N = T ......... (2)
Now, for N = 16, from equation (2) we get,
T = 16 × 6 = 96 minutes.
Therefore, they will take 96 minutes to add 16 seats. (Answer)
Ответ:
![\large{ \tt{❃ \: EXPLANATION}} :](/tpl/images/1360/8759/cf5f2.png)
Firstly you need to remember the formula to find out surface area of a cylinder - Surface area of a cylinder = 2πr ( r + h ) where r is the radius of a circular face and h is the height of the cylinder.We're provided : Diameter of cylinder = 12 which means radius ( r ) = 6 cm [ Radius is the half of diameter ] & Height ( h ) = 25 cm & we know pi ( π ) = 22/7.- Plug the values & then simplify !
![\boxed{\large{↦1169.14 \: \tt{ {cm}^{2} }}}](/tpl/images/1360/8759/487fb.png)
Hence , The surface area of given cylinder is 1169.14 cm²✺ Stay dedicated because great things takes time! ♪
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