Question

9- Calcule o valor final considerando o valor inicial a e o desconto percentual p indicados em cada item.

a) a = 500; p = 20%
b) a = 400; p = 60% ​

Answer 1

Resposta:

a)vf = valor final

500==100%

x==20%

100x=500×20

100x=10000

x=10000/100

x=100

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vf=vt-vi

vf=500-100

vf=400

b)

400===100%

y===60%

100y=400×60

y=24000/100

y=240

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vf=vt-vi

vf=400-240

vf=160