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Maths year 11

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Reply 920
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z_o_e
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11
Original post by RDKGames
For 5 you multiplied the numerator by 100 but the denominator by 1000? Pick one or the other; can't do both :wink:


What do you mean?


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Original post by z_o_e
What do you mean?


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165/1000 = 0.165. NOT 1.65.

You did the same mistake on Q6.
Reply 922
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z_o_e
OP
11
Original post by RDKGames
165/1000 = 0.165. NOT 1.65.

You did the same mistake on Q6.


Ergh. Could you give me some of these type of questions please. Like about 5 so I can work on them?

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Reply 923
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z_o_e
OP
11
Original post by RDKGames
165/1000 = 0.165. NOT 1.65.

You did the same mistake on Q6.


What do I do after this step


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Original post by z_o_e
What do I do after this step


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Well think about it. What did you multiply 1.65 by to get 165? Multiply the denominator by the same number
Original post by z_o_e
Ergh. Could you give me some of these type of questions please. Like about 5 so I can work on them?

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Try 6.54, 8.68, 1.21, 10.65.
Reply 926
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z_o_e
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11
Original post by RDKGames
Well think about it. What did you multiply 1.65 by to get 165? Multiply the denominator by the same number


Is this correct now?


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Original post by z_o_e
Is this correct now?


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Why are you ignoring the denominator...? What you've written would imply that 1.65=165 which is not true.
Reply 928
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z_o_e
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11
Original post by RDKGames
Why are you ignoring the denominator...?


I really don't understand this.
I think I need an example.

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Original post by z_o_e
I really don't understand this.
I think I need an example.

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You've done this exact same process before.

1.651=1.651⋅100100=165100\frac{1.65}{1}=\frac{1.65}{1} \cdot \frac{100}{100}=\frac{165}{100}

proceed to simplify.
Reply 930
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z_o_e
OP
11
Original post by RDKGames
You've done this exact same process before.

1.651=1.651⋅100100=165100\frac{1.65}{1}=\frac{1.65}{1} \cdot \frac{100}{100}=\frac{165}{100}

proceed to simplify.


Where does 100/100 come from?

I did those questions like this

I followed this

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Reply 931
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z_o_e
OP
11
Original post by RDKGames
You've done this exact same process before.

1.651=1.651⋅100100=165100\frac{1.65}{1}=\frac{1.65}{1} \cdot \frac{100}{100}=\frac{165}{100}

proceed to simplify.


Done them :smile:


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Original post by z_o_e


Yeah the answers are correct. Your lines of working out doesn't make sense though at all because you say 10.68=10.68100=10010010.68=\frac{10.68}{100}=\frac{100}{100} which just makes me go like "nope nope nope, maths is broken here" because they're NOT equal.
(edited 7 years ago)
Reply 933
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z_o_e
OP
11
Original post by RDKGames
Yeah the answers are correct. Your lines of working out doesn't make sense though at all because you say 10.68=10.68100=10010010.68=\frac{10.68}{100}=\frac{100}{100} which just makes me go like "nope nope nope, maths is broken here" because they're NOT equal.


Aw.
Can you look at these please?


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Original post by z_o_e
Where does 100/100 come from?

I did those questions like this

I followed this

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100/100 is just there to show you how the numerator and denominator change. 100/100 is equal to 1 (makes sense, the overall value doesn't change if you multiply by 1) and so you proceed to multiply the numerators and denominators respectively.
Reply 935
Avatar for z_o_e
z_o_e
OP
11
Original post by RDKGames
100/100 is just there to show you how the numerator and denominator change. 100/100 is equal to 1 (makes sense, the overall value doesn't change if you multiply by 1) and so you proceed to multiply the numerators and denominators respectively.


Could you do a few questions please with the correct working out? On paper

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Original post by z_o_e
Could you do a few questions please with the correct working out? On paper

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On fractions? Or on quadratics like you've posted above?
Reply 937
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z_o_e
OP
11
Original post by RDKGames
On fractions? Or on quadratics like you've posted above?


The wrong Woking out please on fractions.

I tried correcting this


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1471369079663.jpg28.2KB
Original post by z_o_e
The wrong Woking out please on fractions.

I tried correcting this


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ImageUploadedByStudent Room1471369333.866706.jpg


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Original post by z_o_e
Aw.
Can you look at these please?


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The quadratic looks good. Though a=1 where you list a, b and c.

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