neidaq12345 neidaq12345
  • 09-11-2020
  • SAT
contestada

The product of a number and 2 less than the number is 15. Find the number
A) -3 or 5
B)-2 or 6
C)-6 or 2
D) -5 or 3

Respuesta :

yanni731 yanni731
  • 09-11-2020
x(x-2) = 15 where x = the unknown number
If you test all the answers in that equation, both x values in answer A yield 15, so the answer is A
Answer Link

Otras preguntas

Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12
You apply to 20 graduate programs, 10 of which are in clinical psychology, 5 of which are in counseling, and 5 of which are in social work. You receive a
Are all 5 sided figures similar?
why do all normal cells in human body have same number of chromosomes?
find decimal notation. 0.6%=
The number of girls at middle school Cyber summer camp was six more than twice the number of boys. The total of 156 middle school at the camp. How to use the 5-
The points given in the table lie on a line.fund the slope of each line
Why are individual chromosomes more difficult to see during interphase than during mitosis?
Use elimination to solve this system of equations. X-4y=-11 and 5x-7y=-10
List three examples of direct evidence of evolution.
good job