feara2007 feara2007
  • 14-10-2021
  • Mathematics
contestada

At a school the ratio of the number
of boys to number of girls is 9:11
There are 96 more girls than boys.
Work out the total number of
students at the school.

Respuesta :

kemalabbas79
kemalabbas79 kemalabbas79
  • 14-10-2021

Answer:

boys=432 girls=528

Step-by-step explanation:

11b=9g

g=b+96

11b=9(b+96)

11b=9b+864

11b-9b=864

2b=864

b=432

g=432+96

g=528

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