T is directly proportional to x2. If T=36 and x=3 find the value of t when x = 5

Mathematics

1 answer:

gavmur [86]2 years ago

6 0

Answer:

${ \bf{T \: \alpha \: {x}^{2} }} \\ { \tt{T = k {x}^{2} }} \\ { \tt{36 = (k \times {3}^{2}) }} \\ { \tt{k = 4}} \\ \\ { \tt{T = 4 {x}^{2} }} \\ { \tt{T = (4 \times {5}^{2}) }} \\ { \bf{T = 100}}$

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