Respuesta :

TheAronDavies
Let the third number=x 
1st number is therefore 7x and the second number is 2x
7x+2x+x=91
10x=91
x=9.1

1st number is 63.7
2nd is 18.2
3rd is 9.1

*Tip* Next time write out the question or make the question easier to read :)
AyoV
51 - 7 =44
44 ÷ 4 = 11
first number is 11 + 7 =18
second number is 11 × 2 = 22
third number = 11

18 + 22 + 11 = 51

Otras preguntas