One serving of wheat square cereal has 7 grams of fiber, which is 28% of the recommended daily amount. What is the total recommended daily amount of fiber? Give your answer in grams.

Respuesta :

let's say that is x, thus x is the 100% of the recommended daily amount, and we know the 7 grams is 28% of that.


if 7 is the 28%, what is the 100% anyway?


[tex] \bf \begin{array}{ccll}
amount&\%\\
\cline{1-2}
7&28\\
x&100
\end{array}\implies \cfrac{7}{x}=\cfrac{28}{100}\implies \cfrac{7\cdot 100}{28}=x\implies 25=x [/tex]

Answer:

25 grams

Step-by-step explanation:

Let x be the recommended daily amount ( in grams ) of the fiber,

So, 28% of x = [tex]\frac{28}{100}x[/tex] = 0.28x

According to the question,

7 gram is 28% of the recommended daily amount of fiber,

That is, 0.28x = 7

[tex]\implies x=\frac{7}{0.28}=25[/tex]

Hence, 25 grams is the total recommended daily amount of fiber.