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Amiraneli [1.4K]
3 years ago
7

Given that T=KX/Y,find the percentage increase in T when k, xandy all increase by 20%​

Mathematics
1 answer:
madam [21]3 years ago
5 0

Answer:

The percentage increase in T is 20 %.

Step-by-step explanation:

Let be T = \frac{k\cdot x}{y}, whose initial parameters are k = k_{o}, x = x_{o} and y = y_{o}. If these three parameters are increased by 20 %, then initial and final values of T are, respectively:

Initial value

T_{i} = \frac{k_{o}\cdot x_{o}}{y_{o}} (1)

Final value

T_{ii} = \frac{(1.2\cdot k_{o})\cdot (1.2\cdot x_{o})}{1.2\cdot y_{o}}

T_{ii} = \frac{1.2\cdot k_{o}\cdot x_{o}}{y_{o}} (2)

(1) in (2):

T_{ii} = 1.2\cdot T_{i}

And the percentage increase in T is:

\%T = \frac{T_{ii}-T_{i}}{T_{i}}\times 100\,\% (3)

\%T = \frac{1.2\cdot T_{i}-T_{i}}{T_{i}}\times 100\,\%

\%T = 20\,\%

The percentage increase in T is 20 %.

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