shanesancho shanesancho
  • 13-09-2015
  • Mathematics
contestada

the three numbers are in the ratio 2 : 3 : 4 and the sum of their cubes 12375

Respuesta :

faizu
faizu faizu
  • 13-09-2015
let us take each number as x = 2x , 3x,  4x 
(2x)³+(3x)³+(4x)³=12375
8x³+27x³+64x³=12375
99x³=12375
x³=12375/99 
  =125
x =∛125
x=5
2x=2×5=10
3x=3×5=15
4x=4×5=20

therefore, the three numbers are 10,15 and 20 .....

Hope it helps !!
Answer Link

Otras preguntas

Think about race relations in your home country or another country. How would you describe them in the present? In the past?
how does environmental population change in growth​
What view point is being expressed in the e-mail
what is the strongest vasoconstrictors secreted by kidney?​
Find the measure of the missing angles. 100° b = C=
PLEASE HELP, ILL MARK BRAINLIEST
What do you do if your computer dies/malfunctions? Reboot (Restart) Shut Down Recovery CD and Recover your system Call a person to fix it​
Please Help!!! Thank you! find x
what do you mean by weather
use different method of depreciation for each of the assests and explain why u used the method (ex : straight line method, double declining method, unit of prod