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

The line whose equation is y=4x+2 has a y-intercept with coordinates
Monomal by a Dinormal What is the product of x(x + 1)? O 2x+x 0x2+2x 022 +1 O x² + x will give brainliest
What should be used to prevent javascript from accessing a session id value?.
Can someone please help me
Write paragrapt about your father or mother using present tense​
What country is the largest democracy in the world with an estimated 850,000 million eligible voters?.
1. What line of longitude degree is the letter A found on? (pg. 3) 2. What line of latitude degree is the letter D found on? (pg. 3) 3. What letter is on the Eq
After he attended the neighborhood meeting he became more frustrated
the townshed duties…
Assuming a current is flowing, what increases the strength of the magnetic field of a coiled electrical wire?.