Respuesta :

mysticaldogg
31.68 is 45% of 70.4

n * 0.45 = 31.68
divide both sides bu 0.45

n=70.4

Answer:  The required number is 70.4.

Step-by-step explanation:  We are given to find the number of which 31.68 is 45%.

Let x be the required number.

Then, according to the given information, we have

[tex]45\%\times x=31.68\\\\\Rightarrow \dfrac{45}{100}\times x=31.68\\\\\Rightarrow x=\dfrac{3168}{45}\\\\\Rightarrow x=70.4.[/tex]

Thus, the required number is 70.4.