primetime15 primetime15
  • 22-01-2021
  • Mathematics
contestada

Nine times a number plus four. The result is one hundred twenty eight. What is the number?

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ChoiSungHyun
ChoiSungHyun ChoiSungHyun
  • 22-01-2021

Step-by-step explanation:

Let x represent the number.

We have 9x + 4 = 128.

=> 9x = 124 (subtract 4 on both sides)

=> x = 124/9. (divide 9 on both sides)

Hence the number is 124/9 or 13.77....

Answer Link
manissaha129
manissaha129 manissaha129
  • 23-01-2021

Answer:

Nine times a number plus four. The result is one hundred twenty eight.

Let the required number be x

According to the above problem,

[tex]9x + 4 = 128 \\ 9x = 124 \\ x = \frac{124}{9} \\ \boxed {x = 13.778}[/tex]

the number is 13.778

Answer Link

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