hejones2004 hejones2004

28-04-2021
Mathematics

contestada

X is proportional to ✓y where y>0 .
y is increased by 44%
work out the percentage increase in x

Respuesta :

mathstudent55 mathstudent55

29-04-2021

Answer:

20%

Step-by-step explanation:

x = k√y

Increase y by 44%. y becomes 1.44y.

x = k√(1.44y)

x = 1.2k√y

x went from k√y to 1.2k√y.

(1.2k√y)/(k√y) = 1.2

x is now 1.2 times greater than it was, so the increase in x is 20%.

Answer: 20%

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