Respuesta :
from 0.40 to 7.25 is 7.25 - 0.40 or 6.85.
now, if we make 0.40 to be the 100%, what is 6.85 off of it in percentage?
[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 0.40&100\\ 6.85&p \end{array}\implies \cfrac{0.40}{6.85}=\cfrac{100}{p}\implies p=\cfrac{6.85\cdot 100}{0.40}[/tex]
now, if we make 0.40 to be the 100%, what is 6.85 off of it in percentage?
[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 0.40&100\\ 6.85&p \end{array}\implies \cfrac{0.40}{6.85}=\cfrac{100}{p}\implies p=\cfrac{6.85\cdot 100}{0.40}[/tex]
so this is how you do the math its very simple.
6.85 · 100 = 685
685 ÷ 0.40 = 1712.5
so your answer will be 1712.5