We have a possible quiz tomorrow and I REALLY want to figure out how to solve the following questions just in case our teacher will pattern the test that way. I'm sorry if I'm desperate, but I just want to solve these problems by myself! My teacher won't be of much help. :( Anyway, here are the questions. 1. A car traveling at 60 km/h left town at 9:00 A.M. Another car traveling at 65 km/h left the same town 30 minutes later to overtake the first. At what time did the second car overtake the first car? 2. Nellie noticed she had finished one-third of the flower garlands she had to make and that if she finished eight more, she would have finished one-half of them. How many garlands was she supposed to make? 3. A piece of wire 20 dm long is cut into two pieces, one of which is bent into a circle and the other into a square enclosing the circle. Find the length of the diameter of the circle. (Use pi = 22/7) 4. The ratio of Charlie's age to Peter's age is 3:5. In how many years will their ages be in the ratio 3:4? (There are several answers possible) Hope you could help me out! And please explain, if you could. I really want to learn this stuff. Thanks!
Homework Help - 4 Answers
People's Answers, Critics, Comments, Opinions :
Answer 1 :
eh
Answer 2 :
4. The ratio of Charlie's age to Peter's age is 3:5. In how many years will their ages be in the ratio 3:4? (There are several answers possible) Well its a trick question. there are always ageing at the same time. so it will always be 3:5 :)
Answer 3 :
You should put the answers that you got and solve them yourself and then we can tell you if they are right or not. Us just giving you the answers wont help you as much when you vizualise and solve them for yourself. (i hope this helps) if you put the answers on here i will check them)
Answer 4 :
Okay here goes .... 1) As far as I can tell the answer should be about 4 o' clock. ** At 10 car#1 will have travelled 60 km & car#2 32.5 km 11 - 120 & 97.5 12 - 180 & 162.5 1 - 240 & 227.5 2 - 300 & 292.5 3 - 360 & 357.5 4 - 420 & 422.5 ** 2) This one is trial and error. Basically you just substitute numbers in until you get the right answer. She has made 16 already. After making 8 more she will have 24. 24 is half of 48. 16x3 = 48. 3) Sorry I am rubbish with circles and have no idea what to do :( 4) Again trial and error. If Charlie is 6 then Peter would be 10. (3:5) 6 years later .... Charlie would be 12 and Peter would be 16 (3:4) Hope that helped somewhat.... :)
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