Maths year 11
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Original post by z_o_e
Correct, though you could just rewrite it as if you can spot what is really happening here.
Original post by RDKGames
Correct, though you could just rewrite it as if you can spot what is really happening here.
Thank you!
I just did this. Looks incorrect as it says how many years will her cat be worth £6000 and I did not get that.
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Original post by z_o_e
Thank you!
I just did this. Looks incorrect as it says how many years will her cat be worth £6000 and I did not get that.
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I just did this. Looks incorrect as it says how many years will her cat be worth £6000 and I did not get that.
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So it would be worth £6000 after 6 full years. You can work out the exact amount of years but I don't think you can do that at GCSE.
Original post by RDKGames
So it would be worth £6000 after 6 full years. You can work out the exact amount of years but I don't think you can do that at GCSE.
I'm not sure whether it's 6 or 7 years.
6 years is more than £6000
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Original post by z_o_e
These questions never make anything clear. Technically speaking, it hits £6000 during it's 7th year so it does NOT fully complete the 7 years which is why I'm saying 6.
Original post by RDKGames
These questions never make anything clear. Technically speaking, it hits £6000 during it's 7th year so it does NOT fully complete the 7 years which is why I'm saying 6.
How do I work this out
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Original post by RDKGames
These questions never make anything clear. Technically speaking, it hits £6000 during it's 7th year so it does NOT fully complete the 7 years which is why I'm saying 6.
Heyaa can you help me on the one above please xx
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Original post by z_o_e
m is the gradient and c is the y-intercept so you can figure this from looking at the graph. For the gradient, just pick 2 different coordinates on the line and find the slope as usual.
Original post by RDKGames
m is the gradient and c is the y-intercept so you can figure this from looking at the graph. For the gradient, just pick 2 different coordinates on the line and find the slope as usual.
Is this correct
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Original post by z_o_e
Looks correct, yes, though it's hard to determine the gradient from a graph like that without any annotation.
Original post by RDKGames
Looks correct, yes, though it's hard to determine the gradient from a graph like that without any annotation.
Thank you. I find it hard doing it on plain paper lined paper is easier.
This question need explanation please
so sorry for being annoying but I need to understand practise papers so I can do them alone. Posted from TSR Mobile
Original post by z_o_e
its wrong
power of -4 doesnot mean that you have to multiply it with -4
its mean multiply value by how many times
in this question
2p^-4 = 1/2p^4 =1/2p*2p*2p*2p =1/16p4
hope it make sense
Original post by z_o_e
Thank you. I find it hard doing it on plain paper lined paper is easier.
This question need explanation please so sorry for being annoying but I need to understand practise papers so I can do them alone.
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This question need explanation please
so sorry for being annoying but I need to understand practise papers so I can do them alone. Posted from TSR Mobile
Okay so for part A you should consider all the possible combinations from the spinner and the die in order to get a 3. This is a very simple example and I'm sure you can agree that the only way to get a 3 is from getting a 1 and a 2.
So work out the probability that Sally gets a 1 on the spinner, and a 2 on the die, then multiply these probabilities together. You multiply, and NOT add, because this is conditional probability. She will get a 3 on a CONDITION that she get's a 1 followed by a 2 on the respective items.
For part B it's essentially the same thing. List what scores Sally can get that are less than 5 and see how they can be achieved from the two items.
(edited 7 years ago)
Original post by RDKGames
Okay so for part A you should consider all the possible combinations from the spinner and the die in order to get a 3. This is a very simple example and I'm sure you can agree that the only way to get a 3 is from getting a 1 and a 2.
So work out the probability that Sally gets a 1 on the spinner, and a 2 on the die, then multiply these probabilities together. You multiply, and NOT add, because this is conditional probability. She will get a 3 on a CONDITION that she get's a 1 followed by a 2 on the respective items.
For part B it's essentially the same thing. List what scores Sally can get that are less than 5 and see how they can be achieved from the two items.
So work out the probability that Sally gets a 1 on the spinner, and a 2 on the die, then multiply these probabilities together. You multiply, and NOT add, because this is conditional probability. She will get a 3 on a CONDITION that she get's a 1 followed by a 2 on the respective items.
For part B it's essentially the same thing. List what scores Sally can get that are less than 5 and see how they can be achieved from the two items.
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Original post by RDKGames
Okay so for part A you should consider all the possible combinations from the spinner and the die in order to get a 3. This is a very simple example and I'm sure you can agree that the only way to get a 3 is from getting a 1 and a 2.
So work out the probability that Sally gets a 1 on the spinner, and a 2 on the die, then multiply these probabilities together. You multiply, and NOT add, because this is conditional probability. She will get a 3 on a CONDITION that she get's a 1 followed by a 2 on the respective items.
For part B it's essentially the same thing. List what scores Sally can get that are less than 5 and see how they can be achieved from the two items.
So work out the probability that Sally gets a 1 on the spinner, and a 2 on the die, then multiply these probabilities together. You multiply, and NOT add, because this is conditional probability. She will get a 3 on a CONDITION that she get's a 1 followed by a 2 on the respective items.
For part B it's essentially the same thing. List what scores Sally can get that are less than 5 and see how they can be achieved from the two items.
Is that correct
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Original post by z_o_e
Not quite for part B. First list all the possible combinations that will give the score of less than 5. There combinations are:
{1,1}
{1,2}
{1,3}
find probabilities for each and add them up
Original post by RDKGames
Not quite for part B. First list all the possible combinations that will give the score of less than 5. There combinations are:
{1,1}
{1,2}
{1,3}
find probabilities for each and add them up
{1,1}
{1,2}
{1,3}
find probabilities for each and add them up
1/4 + 1/6?
Do I do that 3 times?
Or 1/4 + 3/6
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Original post by z_o_e
yes
Original post by RDKGames
yes
Yes done.
And now I add 10/24 3 times?
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Original post by z_o_e
yes
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