typicalyorubaguy typicalyorubaguy
  • 15-08-2019
  • Mathematics
contestada

twice the square of a certain whole number addd to 3 times the number makes 90. find the number​

Respuesta :

Hasrat Hasrat
  • 15-08-2019

Answer:

3.87

Step-by-step explanation:

let the whole no is = x

twce the square of that no = 2x2

three times added 3(2x2) = 90

6x2 = 90

x2 = 15

x = root ( 15)

x = 3.87

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