Hillside High school has 504 students. One-quarter of the students are sophomores, and 3/7 of the sophomores are boys. If one-third of the sophomores girls take French, how many sophomore girls do not take French
2007-07-23 14:01:59 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
504 students
126 somophores
54 somophore boys
72 somophore girls
24 somophore girls take French
48 somophore girls do not take French.
2007-07-26 06:49:45 · answer #1 · answered by Como 7 · 0⤊ 0⤋
Total = 504
(1/4) x 504 = 126 total sophomores
(3/7) x 126 = 54 sophomore boys
126 - 54 = 72 sophomore girls
(1/3) x 72 = 24 girls that take French
72-24 = 48 girls that do not take French
2007-07-23 21:10:38 · answer #2 · answered by cRiMiNgEr 2 · 0⤊ 0⤋
Just keep dividing out the parts you do not need and you find the answer to this :
504 / 4 = 126 are sophomores. (take the total times 1/4, or divide it by 4)
(126 x 4) / 7 = 72 are girls (Since 3/7 are boys, the girls are 4/7 of the total, so take it times 4 and divide by 7)
(72 x 2) / 3 = 48 sophomore girls do not take French ( since 1/3 do take French, take the total times 2/3 for the answer)
48 Sophomore girls do not take French.
2007-07-23 21:19:09 · answer #3 · answered by Don E Knows 6 · 0⤊ 0⤋
Total students = 504
Sophomores = 504/4 = 126
Sophomore boys = 3(126)/7 = 54
Sophomore girls = 126 - 54 = 72
Sophomore girls not taking French = 2(72)/3 = 48
2007-07-23 21:13:14 · answer #4 · answered by kindricko 7 · 0⤊ 0⤋
1/4 of the students are sophomores: 1/4*504
3/7 of the sophomores are boys:
Therefore 4/7 of the sophomores are girls: 4/7 * 1/4 * 504
1/3 of the sophomore girls take French
2/3 do not take rench
Number of sophomore girls not taking French = 2/3 * 4/7 * 1/4 * 504 = 2/21 * 504 = 48
2007-07-23 21:07:11 · answer #5 · answered by gudspeling 7 · 0⤊ 0⤋
take 504/4=126, the number of sophomores. then 3/7*126=54 to get the number of boys. 126-54=72 is the number of girls. one third of them take french, so 1/3*72=24. then 72-24=48 is the number that do not take french.
2007-07-23 21:10:35 · answer #6 · answered by bluecollaraddict 3 · 0⤊ 0⤋
Number of students: 504
1/4 of them are sophomores: 1/4 * 504 = 126
Number of sophomores (from above): 126
3/7 of the sophomores are boys: 3/7*126 = 54
Number of sophomore boys (from above): 54
Rest should be sophomore girls (number of sophomores - number of sophomore boys): 126 - 54 = 72
Number of sophomore girls: 72
1/3 of sophomore girls take french: 1/3 * 72 = 24
Number of sophomore girls who take french: 24
The rest don't take French: (number of sophomore girls - number of sophomore girls who take french): 72 - 24 = 48
Number of sophomore girls who do not take french = 48
2007-07-23 21:13:22 · answer #7 · answered by ed_stal 1 · 0⤊ 0⤋
Not enough.
2007-07-23 21:10:00 · answer #8 · answered by Dailley 2 · 0⤊ 0⤋
Hmm dunno
2007-07-23 21:07:13 · answer #9 · answered by Anonymous · 0⤊ 0⤋