#gcse.

62 messages · Page 1 of 1 (latest)

flat cradle
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I don’t understand

IMG_8671.jpg
proven sand
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,flip

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,rotate

covert apexBOT
flat cradle
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Uh no

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I dont thinks so

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Or I can’t remember

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Can u explain

proven sand
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but basically you find the upper bound of Kate's sums and compare it to the lower bound of Amy's sums

flat cradle
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Is like the upper bound for 1 is 1.49 and lower bound 0.5 ect..

proven sand
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Like do you see the top left value of 6.8kg?

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the LB would be 6.75

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and upper bound would be 6.85

flat cradle
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So is it 6.85 + 4.25+5.15

proven sand
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6.75*

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rest are right

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find the sum of that

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then compare it to the upper bounds of kate's

flat cradle
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What’s ther upper bounds of Kate’s

proven sand
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if kate's upper bound is higher than amy's lower bound, then it proves that it could be true

proven sand
flat cradle
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No that’s not true

proven sand
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and then you find the sum of that

proven sand
flat cradle
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Since you would round up to 8.3 so surely it’s 8.244

proven sand
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but its impratical

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so we use 8.25 as the upper bound

flat cradle
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Ok is that a rule I need to like know

proven sand
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not really

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what you thought is right

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but using that in your working out is impractical

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so yeah ig its a rule

flat cradle
proven sand
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Basically how the upper and lower bound would be presented for 8.2 would be:

flat cradle
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Is that right

proven sand
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6.15≤kg<6.25

flat cradle
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Huh

proven sand
flat cradle
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Ok ty

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I’m kinda worried now I’m in year 11 and haven’t done the bound stuff

proven sand
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You'd also leave a slight comment like since Kate's upper bound is higher than Amy's lower bound, this could be true

proven sand
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You can work ahead and visit Corbett maths rn

flat cradle
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I’m aiming for a 9 so

proven sand
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It's not difficult

flat cradle
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What did u get in gcse

proven sand
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An 8

flat cradle
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Did u need to work hard

proven sand
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No

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I was naturally gifted at maths luckily

flat cradle
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So me getting a 9 is unrealistic?

proven sand
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It's realistic

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I was prone to many silly mistakes

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That was my issue

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You have the right mindset

flat cradle
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Oh unlucky 😭

proven sand
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You could get a 9

flat cradle
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Thanks for the help

proven sand