GalenMarye GalenMarye
  • 28-06-2015
  • Mathematics
contestada

50% of a certain number is 39. What is the number?

Respuesta :

Аноним Аноним
  • 28-06-2015
Let that certain number be 'n'

50% (n) = 39

50% ⇒ 0.5

0.5 (n) = 39

Divide both sides by 0.5

0.5n = 39
 /0.5    /0.5

n = 78.

So that certain number is actually 78! :)

CROSS CHECK:

50% of 78

0.5 × 78

= 39

Hope this helps! :)
 
Answer Link

Otras preguntas

What is the mode of 2, 8, 16, 4, 12, 9, 2?
Man vs. Self is an example of (5 points)
write something that happens in the past and how
HELP QUICK!! I don't know how to solve this problem.
You cross two yeast strains one is an ade auxotroph the other is a pro auxotroph and allow the diploid to sporulate. When you score each spore in the ascus you
1. What eight words will change Wiesel's life forever? For him, what was the meaning of those eight words beyond their literal meaning?
what is the shape of the earth
UN CUADRO COMPARATIVO CON las posiciones de los historiadores Waldemar Espinoza, Francisco Hernández, Luis Lumbreras, Maritza Villavicencio y José Luis Pino res
write a letter to someone who was bad to you
Given that 9x – 6y= 19 Find y when x=-6 Give your answer as an improper fraction in its simplest form.