niels91 niels91
  • 10-11-2021
  • Mathematics
contestada

78 decreased by half a number is 45 Find the number

Respuesta :

luvbuglili8
luvbuglili8 luvbuglili8
  • 10-11-2021
78 - 45 = 33
Since it’s half a number you do
33 x 2 = 66
So the answer is 66
Answer Link
jimrgrant1 jimrgrant1
  • 10-11-2021

Answer:

number is 66

Step-by-step explanation:

let the number be n , then

78 - [tex]\frac{1}{2}[/tex] n = 45 ( subtract 78 from both sides )

- [tex]\frac{1}{2}[/tex] n = - 33 ( multiply both sides by - 2 to clear the fraction )

n = 66

The required number is 66

Answer Link

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