anonymous
  • anonymous
Hi, I have got a few non calculator question (30 questions) but I have not got the answers. Could someone please look through and check if I got any wrong. I will attach the paper when I reply. Thanks
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
I have highlighted my answers
1 Attachment
anonymous
  • anonymous
Just check them with a calculator...
anonymous
  • anonymous
K

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anonymous
  • anonymous
I know but I am not good with multiple choice questions and I just want to know if I have dont it the correct way. Its no point using a calculator if I am doing the question wrong
anonymous
  • anonymous
Any specific questions you are curious about?
anonymous
  • anonymous
You have not worked out the problems in the pdf you provided, you have just highlighted your answers, so there is no way for us to determine if your method was correct.
anonymous
  • anonymous
It was mulitple choice so I didnt have to show work but I get what you mean. Well can you just cross check questions 2, 8, 18, 23 and 25. I know they seem easy but I have been out of practice in some time now
anonymous
  • anonymous
25 is wrong, broski.
anonymous
  • anonymous
23 is fine. The others bore me, but 2 seems OK
anonymous
  • anonymous
:( can you help me with 25?
anonymous
  • anonymous
2 is correct. 8 is correct 18 is correct 23 is correct. 25 should have been 1142
anonymous
  • anonymous
Either: work out the speed of each (speed = distance over time), call one time (t) and one time (t - 42/60) = (t-10/7) and work out the distance of each at time t and set them equal. Or, work out how far the first one goes in 42 minutes (140miles), and use the RELATIVE VELOCITY (speed of 2 - speed of 1 = 320-200 = 120mph), and work out how long it takes to 'catch up' that distance i.e 140/120. Add it to 42 minutes.
anonymous
  • anonymous
oops it should have been 1152, not 1142.
anonymous
  • anonymous
y is 25 "c" :1142? this was my calculation to get the time. 320t-200t = 140 then 120t =140 t=140/120 t=1 hour 16 mins
anonymous
  • anonymous
Oh yeah, I get I think I add the times wrong .. thanks
anonymous
  • anonymous
I get it*
anonymous
  • anonymous
14/120 = 7/6 = 1 hour 10 minutes. Time is 1 hour 10 minutes + 42 minutes (it's not 1142)
anonymous
  • anonymous
meant 9.6 mins
anonymous
  • anonymous
Thanks
anonymous
  • anonymous
:D
anonymous
  • anonymous
XD

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