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Please help? |
hey i have about 10 pages of home work due tomorrow because i missed school!!! and i have to finish it buy 3rd period can anyone help me with these questions. i will put you best answer to the first one that puts all thanks. 1)James went shopping one saturday afternoon.He spent 1/2 of the money he had on a new stereo system.He spent half of the money he had on a new suit.half of what remained, he spent on a new sweater.Half of what remained, he spent on a new cd.if he whent home with 15.00 who much money did he have to begin with?... 2)At a middle school, half the studients leave immendiately after school beacuse they walk home.After 5 min, 1/4 of the sutdents remaining are gome, riding home on their bicycles. After another 5 min, 3/4 of those remain for after school activites. how many sutdients attend the middle school?... 1. Start from the beginning. 15X2 and so on 15 30 60 120 240 the answer is 240$ man are things overpriced. 2.Not enough information.... 1) 120 Sorry, not smart enough to do number 2. I feel like I need more info. That's just great isn't it? 2 answers for you... Just to give you piece of mind, the first answer ($240) is correct. One way to work it out without going backwards is y = initial amount (1/2 x y) x 1/2 x 1/2 x 1/2 = 15 1/16 x y = 15 y = 15 x 16 = $240 For the second question, there isn't enough information (as the others said) to give a number but you can give a fraction of students remaining: (1-1/2x1/4)x3/4 (you have to do 1 minus the proportion that goes for the people that are remaining) =(1-1/8)x 3/4 = 7/8 x 3/4 = 21/32 of the students have left the school |
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