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Mrs Tibble’s / Mr Atkins’ Year 9198 comments to Mrs Tibble’s / Mr Atkins’ Year 9 |
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You divide 1080 by 9 not the other way round! Rest correct.
for question 3 is that all you have to do?
Remember to work out the take home pay too.
haha…. I FEEL CLEVER!
but still stuck on part b
Persevere!
LOL! but for question 3B what you said is that all i have to do i.e. 20 divided by 4 and then half that?
Noooooooooooooo!
Work with the ratios:
5 : 4 is the same as 25 : 20 (x both by 5 to preserve the proportions)
Now divide both by 2 and Melissa’s side is now 10 so the other number must be Luke’s.
DON’T WORRY MISS….. I HAVE JUST CALLED AMELIA AND SHE EXPLAINED!
I GET IT! I GET IT! I AM HAVING A LITTLE PARTY AND THE GUESTS GO SOMETHING ALONG THE LINES OF THIS
ME! (obviously)
MY BROTHERS WHO ARE GETTING A BIT ANNOYED (hahaha !)
AND AMELIA….. THANKYOUUU!
Does that mean I’m redundant? Amelia is taking over?
YAY _- I’ll go and put the kettle on and eat some of my Christmas chocolates
hi Mrs T,
i kind of gave up on the maths last night…… so im trying again tonight!!!!!!
but.. im still really stuck on question 3c. ive done a and b but just not c. could you please explain it 2 me??????
the question is: Luke and Melissa give 10% of their take home pay to charity. the ratio of their take home pay is 5:4.
c) one week the total they gave to charity was £10.80. Work out their take home that week.
i have an idea but im not sure if it is right!!! do you have to divide 1090 (4+5) by 9. but then im not sure what you do after that!!!
Hi Zoe,
Might be too late for you now – only just in!
1080 pence is the 10% of their total take home pay so x by 10 to get their pay. If you divide by 9 you get the size of 1 part. Luke gets 5 of those and Melissa gets 4.
JT
Hello, I am stuck on the homework that Mr. Atkins gave us- plotting the curved line graphs. The points I have worked out but when I put them on the graph they looked wrong, what should I do?
Hi Ella,
First check your axes – is the scale correct (particularly around the origin)
Can you tell from the format of the equation what type of curve you should be getting?
Check your arithmetic, especially where you have sub’d in a negative x value.
If you give me the Q and page number, I’ll take a look.
JT
hi mrs tibble
i am really stuck on the first question becuase i can’t work out if it an inverse proportion or direct proportion…. is it direct?
Harriet
SORRY… i know what it is i have worked it out!
Mrs Tibble sorry i do NOT get question 1!
Harriet, it’s an exchange rate for currency so it clearly has to be direct proportion! Double your pounds, double your euros type of problem. Hope you aren’t planning on going abroad before you get your head round this!!
7 francs = 2300 lira
1 franc =
54 francs =
Have fun
miss
I dont understand number twoo!!!
would you have to do 38 divided by 8 and multiply that answer by £30.60?
:S
I didn’t set number 2.
OOOOOoooo We are not meant to do question two! lol
Never mind
=)
hello mrs t
i can do question 1a… but i cant do b. could you pleasee help me???
It’s the same as (a)
Just start with the lira/francs exchange rate the other way round ie lira first.
okay tnx. for qu 13 are the answers… a) direct b) neither c) inverse????
If the rule works for every pair of values – yes; if not, no.
okayyyyy thx
soo much!!!!!!
Hi Mrs Tibble,
I have done th h/w which u have set 4 us 2day, but I was just wondering I have got 4 the 2nd graph (height/base) one odd one out, they are all between 0.70 and 0.73, but the odd one out is 0.64 I can’t find any way 2 make it 0.70… and I have checked it!
pls help me
Hi Aggie,
It should be 0.70. Have you copied over a wrong value into the table?
JT
no I don’t think so. :S sorry..not sure what 2 do now?
I am slightly stuck on the homework that Mr. Atkins set us- I have done as much of it as I can but I still don’t really understand it.
Ella – I think you’ll need to give me some more clues!!
JT
Hi Mrs Tiblle,
For the homework that you set us tonight..? do we set it out the same as we did in the lesson even if it is SOH or CAH becuase we did TOA in the lesson?
Harriet
Hi Mrs T,
I was wondering… on question 26 it dosnet give you one of the sides of measurement, how would you work it out??
Zoe
Harriet – yes.
Zoe -it was Q25.
it says in the book its Qu 26 that dosent have the measurement!!!
Zoe, I didn’t set Q26 as you don’t know how to do it yet.
It was 25 and 27.
ohhhhhhhh few!! thnks…. i cld do everything else
hello
I am really stuck on Q5, 6 and 8 on pg377 (Ex17G)
Nina
Hi Nina,
Start by drawing the triangle. Put the information you are given onto the diagram and call the thing you need to find, x. From the angle, label your sides ( O A H ) then use SOH CAH TOA to work out which trig function you need – sin, cos or tan. Put the values in then solve.
i get that bit, but i am just confuzzled from there!!
When using tan, does the equation always involve dividing?
Nina
All the equations need dividing.
For number 17 on the homework do you have to flip 14 over x the other way round?
Hi Ella,
Sorry, not sure what you are asking here. 22 deg is the angle in the bottom left of the triangle so tan22 will be x/14 not 14/x.
JT
Mrs Tibble i was wondering if you could tell me if we are doing GCSE, or IGCSE? and which course?
Hi Aalia. We do GCSE but as it’s all changing next year I don’t know what the new course number is – sorry.
JT
Hi Mrs Tibble
I have just read what you answered for Ella but I don’t understand how the angle could be on the bottom left hand corner surely, it’s at the top?
Harriet
Hi Harriet,
It says ‘from R’. It’s the angle you have to look up through to see the top of the pole when you are standing at R. (Have a look at page 342 about the tree)
JT
Hi Mrs Tibble,
For the maths homework (page 352 questions 14, 17 and 18)
On 14 it says angle BA^C is 59 degrees, but I don’t know which one is BA^C because there are two possible ones it could be ?
Esther
Hi Esther,
Imagine you are going from B to A to C in that order; it’s the angle between the 2 lines BA and AC. When you get 3 letters, the angle is the letter in the middle and the other letters are at the ends of the lines forming the angle. So, in question 14, it’s the angle at A closest to the right angle sign.
OK now?
JT