Respuesta :

1. We assume, that the number 4.75 is 100% - because it's the output value of the task. 
2. We assume, that x is the value we are looking for. 
3. If 4.75 is 100%, so we can write it down as 4.75=100%. 
4. We know, that x is 8% of the output value, so we can write it down as x=8%. 
5. Now we have two simple equations:
1) 4.75=100%
2) x=8%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
4.75/x=100%/8%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 8% of 4.75

4.75/x=100/8
(4.75/x)*x=(100/8)*x       - we multiply both sides of the equation by x
4.75=12.5*x       - we divide both sides of the equation by (12.5) to get x
4.75/12.5=x 
0.38=x 
x=0.38

now we have: 
8% of 4.75=0.38
This can be solved by finding the product of .8 and 4.75

Hence, 

.8(4.75)
= 3.8

OR If you need to solve without a calculator

.8(4.75)
=[tex] \frac{8}{10}( \frac{475}{100}) [/tex]
= [tex] \frac{4}{5}( \frac{19}{4}) [/tex]
= [tex] \frac{19}{5} [/tex]
= 3.8