ambamay05 ambamay05
  • 24-06-2020
  • Mathematics
contestada

?/? X 45 = 4/5 of ? = ?

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Аноним Аноним
  • 24-06-2020

Step-by-step explanation:

[tex] \frac{4}{5} of \: x = 45 \\ \frac{4}{5} \times x = 45 \\ cross \: multiply[/tex]

[tex] \frac{4x}{5} = 45 \\ 4x = 45 \times 5 \\ 4x = 225 \\ divide \: both \: sides \: by \: 4[/tex]

[tex] \frac{4x}{4} = \frac{225}{4} \\ x = 56.25[/tex]

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