mahayess9319 mahayess9319
  • 04-06-2018
  • Mathematics
contestada

When the square of three times a positive integer is decreased by the integer, the result is $2010$. what is the integer?

Respuesta :

chickenheadbum3
chickenheadbum3 chickenheadbum3
  • 04-06-2018
x = a positive integer
3x = 3 times the number
9x^2 = the square of 3 times the number
.
9x^2-x = 2010
.
9x^2 -x -2010 = 0
So x = 15 is the only integer solution.
.
Checking this value, we find:
9*225 -15 = 2010
correct.
.
Answer: x = 15 ;)

Answer Link

Otras preguntas

A one page document that introduces you, your skills and background and asks for an interview is an example of what type of document?
[tex]\frac{1}{2} \geq -\frac{1}{6} -\frac{2}{9} x[/tex]can someone explain how to do this i dont get fractions
Please answer this correctly
The sum of -7 times a number and 8 times the sum of the number and 1 is the same as the number minus 7
what is the consequence if an essential amino acis is missing in the diet?​
How to simplify 4x^5•3x
Find a) the volume and b) the surface area of each rectangular prism give the measurements below L=1.5m W=3m H=2m
What is the value of 3ab + 5b - 6 when a = -1 and b = 3? 0 6 18 24
UAE a land of innovation and great opportunities. Explain
Who is in line to be President after the Vice-President? A House member elected by special election A Senator The House Speaker A Committee Chairman