Seudónimo
Seudónimo
17-04-2017
Mathematics
contestada
D+d+d+d=120 what is d
Respuesta :
Braveheart2
Braveheart2
17-04-2017
The answer to D should be 30.
Answer Link
apologiabiology
apologiabiology
17-04-2017
remember you can do anything to an equation as long as you do it to both sides
assumind D=d
d+d+d+d=120
4d=120
divide both sides by 4
4d/4=120/4
d(4/4)=30
d(1)=30
d=30
d=30
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