evgenybutyrev evgenybutyrev
  • 24-01-2021
  • Mathematics
contestada

2 1/4 = 1 2/7÷x

what is x?

Respuesta :

lovethrekiat
lovethrekiat lovethrekiat
  • 24-01-2021

Answer:

x=4/7

Step-by-step explanation:

Change mixed fractions to improper fractions

2 1/4 = 9/4

1 2/7 =9/7

Therefore, we have

9/4=9/7÷x

9/7÷x is 9/7×1/x=9/7x

Then, we have

9/4=9/7x

Cross multipy

9×7x=9×4

63x=36

Make x the subject of the formula, we have

x=36/63

x=4/7

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