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LenKa [72]
4 years ago
12

1)      Um número somado com sua quarta parte é igual a 80. Qual é esse número? 

Mathematics
1 answer:
Setler [38]4 years ago
5 0
Hello, 

x= number
x/4=  its fourth

So, 

x+ \frac{x}{4} =80 \\  \\  \frac{5}{4}x=80 \\  \\ x = \frac{80*4}{5}\\ \\ x=64

Answer: the number is 64
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