Question 335991
there are 6 boys to every 9 girls in the sixth grade.
 there is a total of 75 students in the sixth grade.
 how many boys are there in the sixth grade?
:
Let x = the multiplier
No. of boys to girls:
{{{(6x)/(9x)}}}
then
6x + 9x = 75
15x = 75
x = {{{75/15}}}
x = 5
We have
6(5) = 30 boys
and
9(5) = 45 girls
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total: 75 students