tillyjaynesinclair tillyjaynesinclair
  • 12-04-2021
  • Mathematics
contestada

y is directly proportional to the square root of x
x
If
y
=
60
when
x
=
36
find,
x
when
y
=
80

Respuesta :

zoeyhanson2141 zoeyhanson2141
  • 18-04-2021

Answer:

Step-by-step explanation:

y=k[tex]\sqrt{x}[/tex]

60=k[tex]\sqrt{36\\}[/tex]  =k6

k=60/6 =10

This is your equation

y=10[tex]\sqrt{x}[/tex]

Put the numbers in

80=10[tex]\sqrt{x}[/tex]

80/10=8 then you have to square this so

[tex]8^{2}[/tex]=64

x=64

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