Let the 5-grade students be A in total.
Let b of these be boys, and g of these be girls, so b+g=A.
i) "At a certain elementary school, 10 percent of the fifth-grade students are members of the school band."
this means that the number of the members of the school band is :
ii)
"<span>12 percent of the fifth-grade boys and 8 percent of the fifth-grade girls are members of the band</span>"
this means that the number of the band members is:
equalizing these 2 ways of expressing the number of members of the band, we have:
so g=b
this means that 50% of the 5-grade students are boys.
Answer: 50%
Let b of these be boys, and g of these be girls, so b+g=A.
i) "At a certain elementary school, 10 percent of the fifth-grade students are members of the school band."
this means that the number of the members of the school band is :
ii)
"<span>12 percent of the fifth-grade boys and 8 percent of the fifth-grade girls are members of the band</span>"
this means that the number of the band members is:
equalizing these 2 ways of expressing the number of members of the band, we have:
so g=b
this means that 50% of the 5-grade students are boys.
Answer: 50%