If there are 640 students in Junior High, and 55% of them are in sports. How many participate in sports?
2007-12-10 08:26:43 · 6 answers · asked by sheila 2 in Education & Reference ➔ Homework Help
the first thing you need to remember is that in mathematics "of" usually means multiply and "is" means equals. You also need to remember to convert %ages into decimals when you need to work with them. So re-write the question, 55% of 640 is what number?
0.55*640=352; 352 students participate in sports.
2007-12-10 08:32:23 · answer #1 · answered by Alli 3 · 1⤊ 0⤋
352. You do a proportion: x / 640= 55 /100. The second part is used to transfer the percent into actual people. It'll always be the percent out of 100.
2007-12-10 16:31:54 · answer #2 · answered by Kaylee 3 · 1⤊ 0⤋
How many participate in sports?
This is all the information you need.
Can you multiply 640 times 0 .55 ? Decimal 0.55 is 55%.
2007-12-10 16:31:59 · answer #3 · answered by ed 7 · 0⤊ 0⤋
640 times .55 = 352
where .55 = 55%
2007-12-10 16:30:24 · answer #4 · answered by azn-persuazn 3 · 1⤊ 0⤋
352
2007-12-10 16:30:55 · answer #5 · answered by Anonymous · 0⤊ 0⤋
the first guy is right, and some of the others, but the other answers confuse me so go with the first answer ..ahha =]
2007-12-10 16:35:17 · answer #6 · answered by sawaah 2 · 0⤊ 0⤋