alexander7355 alexander7355
  • 30-04-2021
  • Mathematics
contestada

b is directly proportional to a.
b is 10 when a is 8.
Work out b when a is 9.

Respuesta :

velvvio36
velvvio36 velvvio36
  • 30-04-2021

Answer:

B=11

Step-by-step explanation:

b=10 a=8

b=? a=9

Either you can cross multiple 10x9=90/8 (11.25, round down to 11), or you can look that 9 is 8+1, so of we do the same process to b then we would find our awnser. 10+1=11.

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