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 is the main religion of Latin america
What is a communicable disease ?
a soccer team played 160 games and won 65% of them. how many did they win?
Luke made a model that has 1 circular base and 1 curved surface.what solid figure did he make
What is a group of organisms that look alike and can reproduce among their selfs ?
1.    How does the friction affect forward motion? Give an example. 2.    Describe two ways to change the frictional force between two solids surfaces. Change t
when we look at a leaf, we see the colors of light that are reflected off its surface. how does the relatively low flow of oxygen in green light?
What culture believes health is harmony between man and nature?
How do you work out the problem 84 divided by4
What is a communicable disease ?