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

Translate the sentence into an equation seven times the sum of a number and 5 is 4
A college financial advisor wants to estimate the mean cost of textbooks per quarter for students at the college. For the estimate to be useful, it should have
What is function?write one example
3 8 3 ​ ÷9=3, start fraction, 3, divided by, 8, end fraction, divided by, 9, equals
An organism which causes a disease A.host B. Vector C. Parasite D. Pathogen
¿que son los cuadriláteros?
ASAP!!! Please help me with this question!!!!!
A line passes through the points (-3,1) and (9,5) and is labeled line d. Construct two lines: A line that is parallel to the line d described above through the
How do I find the solution of each system of equations? y = 2x - 1 y = 3x + 2
HELP PLSA wine store conducted a study. It showed that a customer does not tend to buy more or fewer bottles when more samples are offered. What can we conclude