Respuesta :
Answer:
The whole number was 120.
Step-by-step explanation:
Let the whole number that is to be determined is = x
Then 70% of this number = 70% of x
Replace 'of' by the sign of multiplication
70% of x = [tex]x\times \frac{70}{100}[/tex]
= 0.7x
If 70% of x is equal to 84 then the expression will be
0.7x = 84
x = [tex]\frac{84}{0.7}[/tex]
x = [tex]\frac{840}{7}[/tex]
x = 120
Therefore, the whole number was 120.