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ok thanks for that.

do we need to know the equations and how to test for BOD and dissolved oxygen or just the name and general idea of how it's tested for?

i used to get in the 90's now it's like 88 or 89 which is ok but i could do better, most people in our year get in the 90 down to the 70 not much below i don't think, it's not surprising for the hightest mark to be 98% i always thought thats what most people got for ancient history but i guess not.

i like the chemistry exam as you only have to write short answer compared to stuff like english or history, BUT i absolutely hate chemistry sooooooooooo much, so am partly looking forward to it cos of the way it's set out and partly so i never have to do any chemistry EVER EVER again

well i just fgiured if they asked for a model of a feedback mechanism you'd label stuff anyway, thats what i'd do, how are they supposed to know whats what???? i really dont see a problem with that question, but thats just me, guess it depends on what your teachers done for you

i never have a problem with biology exams, i always get good marks 74/75% which i think is good, and i've never done that much study, they always seem pretty easy to me, but i guess it depends on your teacher.

think i did too i got like $38, doint care though it's done and if you dont get the marks you wanted it's not the end of the world

how can they force you???? you're there for like 2 hours and then you leave, what are they gonna do, put you on detention?? i just really don't see how they can force you

i guess 1 you use if you know what it's going to be, the one with the A in it, and the other you use if you don't have the final amount that it's going to be. im pretty sure our teacher said we could just use whichever one we wanted

yeah this is what im talking about though 0.6666 is 8% divided by 12. why isn't it divided by 100 and is this how it always goes for reducilbe interest???? just dividing the eg 8% by 12????

i go through quickly and do all the ones i can then go back over slower an ddo the ones i have more trouble with

yeah sorry im not the best at describing stuff, i put an example from another thread, but my Q still is why only divide by 12 (as they've done) why not 100???? Mr Chan takes out a $100,000 loan at 8%p.a. reducible interest over 25yrs. Interest is calculated and added on the first of each...

no no no sorry thats not what im talking about, im talking about "reducible interest" in it a table and you have to work out how much the repayments go down each month, you guys must have done it before this year or last even. sorry but its the only topic that has this interest problem, and...

so say you have 6% divide it by 12(for the months) you get 0.5, which is the number they're using to get their answer, if you divide by a further 100 you get 0.005 which gives you very wrong answers,

ok thanks but if i divide it by 100 im getting different answers to the textbooks, but if i only divide by 12 im getting the right answers, so im so confused

i didn't mean which you divide first i meant do you divide it by both 12 AND 100 or just 12, and say you have 6% you divide it by 12 you get 0.5% thats what they're using to work it out they stop there and dont further divide it by 100% sorry for not making much sense its really hard to explain.

its in a table and starts borrows $50 000 interest 6% p.a monthly repayment $650 on the 4th month you gotta work out the interest A, the new amount owing B, and the final amount owing after repayment C, principal: $49198 gotta work out the rest from there only their answers work if...

please............. someones gotta know this.

reducible interest???? divide by 12 or 100???? with working out the interest in reducible interest do you divide the % interest by 12 then 100 or just 12???? i always thought 12 the 100 but on the sheets i've been doing they only divide by 12

well? do we???? im was pretty sure that we did but just wanted to make sure thanks