AlbieryVargas AlbieryVargas
  • 02-08-2017
  • Mathematics
contestada

if x,y and z are positive integers and 3x=4y=7z,
then the least possible value for x + y + z is

(a) 33
(b) 40
(c) 49
(d) 61
(e) 84

Respuesta :

choixongdong
choixongdong choixongdong
  • 02-08-2017
3x=4y=7z
so
GCF:
3 * 4 * 7 = 84

3x = 84 
  x = 28

4y = 84
  y = 21

7z = 84
  z = 12

least possible value for
x + y + z = 28 + 21 + 12 = 61

answer
(d) 61
Answer Link

Otras preguntas

What are 5 renewable energy Resources and why are they better for the society and the environment
What are the zeros of the polynomial function f(x)=x^3-x^2-12x
i sawer there only 2 more
How are messages carried throughout the human body from the brain to the nervous system?       A. Active transport  B. Chemical channels  C. Electrical signals
What is the next term in the sequence
What must occur for transcription to occur
what happened in august 1492
Please select the word from the list that best fits the definitionlos esquís acuáticosWATER SKIS
the North End of the Earth's axis is tilted toward the sun North America will experience​
Which of the following is true about forms of photography?