Jeanillephilip27 Jeanillephilip27

19-03-2021
Mathematics

contestada

if the mean of the numbers 2x,3x,4x and 3x is 12,then the sum of the numbers is?
a)4
b)12
c)48
d)80

Respuesta :

sherlocking sherlocking

19-03-2021

Answer:

C. 48.

Step-by-step explanation:

If the mean is 12, then 12 must be 2x, 3x, 4x, and 3x divided by 4.

--> [tex]\frac{2x+3x+4x+3x}{4}=12[/tex]

--> [tex]\frac{12x}{4}=12[/tex]

--> [tex]\\3x=12[/tex]

--> x=4

Add: 2x+3x+4x+3x=8+12+16+12=48

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