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Thread: cars on road

  1. #1
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    cars on road

    cars on road-win_20170601_17_08_09_pro.jpgClick image for larger version. 

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    can someone help me with question 8bii
    i tried to solve this by 450-16t=200+20t t=4.16 the right answer is t =6.94
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  2. #2
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    Re: cars on road

    Your equation is correct. Add 16t to both sides. Subtract 200 from both sides. Divide both sides by 36. You wind up with $t = \dfrac{250}{36} \approx 6.94$.
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  3. #3
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    Re: cars on road

    Marko, can you not attach ONLY the problem,
    and also make sure damn thing is readable.

    Better still: type in the problem YOURSELF.
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  4. #4
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    Re: cars on road

    Quote Originally Posted by markosheehan View Post
    Click image for larger version. 

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ID:	37704Click image for larger version. 

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    can someone help me with question 8bii
    i tried to solve this by 450-16t=200+20t t=4.16 the right answer is t =6.94
    If you put t= 4.16 into 450- 16t= 200+ 20t you get 450- 16(4.16)= 383.44 while 200+ 20(4.16)= 283.2. No, 4.16 is NOT the correct answer.

    I am inclined to suspect that you subtracted wrong. Subtracting 200 from 450 gives 250 but if you accidently got 150 rather than 250, 150/36= 4.17.
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  5. #5
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    Re: cars on road

    i get it now
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  6. #6
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    Re: cars on road

    if i type the question people will not get to see the diagram. Also for some questions its hard to type out the given question
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