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#1351 2014-01-04 06:29:39

SteveB
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Re: Mandy Jane's Corner

Yes good.

Right now the second part of my question asks you to round off the percentages to the
nearest whole number and then work the two out which would change (2.5% and 18.5%)
to see by how much the answer changes as a result of this.
So: What is 2.5 % rounded to the nearest whole number using a conventional rounding method ?

#1352 2014-01-04 06:31:47

mandy jane
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Re: Mandy Jane's Corner

what is the conventioal rounding method then?

#1353 2014-01-04 06:32:21

SteveB
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Re: Mandy Jane's Corner

I was expecting 3% as an answer to that one.

#1354 2014-01-04 06:34:49

SteveB
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Re: Mandy Jane's Corner

If the number has a five after the decimal place then conventionally we usually round upwards.

So 0.5 rounds to 1 even though it is as near to one as to zero.

and 1.5 rounds to 2 even though it is as near to two as to one.

#1355 2014-01-04 06:35:14

mandy jane
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Re: Mandy Jane's Corner

could you do me some more for tomorrow as i find this hard to do then and i need to prackt them ok ? if this is ok with you?

#1356 2014-01-04 06:36:51

SteveB
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Re: Mandy Jane's Corner

Anything between 0.5 and 1.0 would round to 1
Anything less than 0.5, but higher than 0 rounds to zero.
So 0.49 rounds to zero.
(Obviously this is when rounding to the nearest whole number, I will have to go into
rounding to a certain number of decimal places separately.)

#1357 2014-01-04 06:38:29

SteveB
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Re: Mandy Jane's Corner

I have got a few percentage problems which are these:
Problem (1)
What is 20% of 500 ?
What is 25% of 700 ?

Problem (2)
Of 560 shared out, Andrew is given 70, Luke is given 105, Karen is given 245,
Chloe is given 140. What percentages have each been given?

Problem (3)
Of 810 shared out, 360 is given to Peter, 405 is given to Thomas and 45 is given to Carl.
What percentages of 810 are these to one decimal place accuracy ?

#1358 2014-01-04 06:39:05

mandy jane
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Re: Mandy Jane's Corner

can you do some more pleas as i need to prackes them ok hope you dont mine can you do them for tomorrow please

#1359 2014-01-04 06:40:50

SteveB
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Re: Mandy Jane's Corner

Here is a recap on some rounding problems that I have posted two months ago:
Q1: Round to the nearest whole number 4.7 ?
Q2: Round to the nearest whole number 7.5 ?
Q3: Round to the nearest whole number 3.2 ?

#1360 2014-01-04 06:43:03

mandy jane
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Re: Mandy Jane's Corner

ok i will do them for you tomorrow ok? can you send me some more to do as well as i have to go as my husben is not well ok back tomorrow on what time will you be on here please?

#1361 2014-01-04 06:44:51

SteveB
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Re: Mandy Jane's Corner

Let us make it 7pm on Saturday.

#1362 2014-01-04 06:46:04

mandy jane
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Re: Mandy Jane's Corner

ok see you on here at 7.00 tomorrow night ok buy for now

#1363 2014-01-04 06:46:23

SteveB
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Re: Mandy Jane's Corner

Bye.

#1364 2014-01-05 04:23:05

mandy jane
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Re: Mandy Jane's Corner

Hi steveb mandy here sorry I will not be on here tonight will be on here tomorrow night ok. Sorry sorry

#1365 2014-01-05 05:40:41

SteveB
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Re: Mandy Jane's Corner

Here are the answers to those exercises from two days ago:

Problem (1)
What is 20% of 500 ?
500 x 0.2 = 100

What is 25% of 700 ?
700 x 0.25 = 175

Problem (2)
Of 560 shared out, Andrew is given 70, Luke is given 105, Karen is given 245,
Chloe is given 140. What percentages have each been given?

Answer:
Andrew is paid 12.5%
Luke is paid 18.75 %
Karen is paid 43.75 %
Chloe is paid 25 %

Problem (3)
Of 810 shared out, 360 is given to Peter, 405 is given to Thomas and 45 is given to Carl.
What percentages of 810 are these to one decimal place accuracy ?

Answer:
Peter is paid 44.4 %
Thomas is paid 50 %
Carl is paid 5.6 %

Q1: Round to the nearest whole number 4.7 ?
Answer: 5
Q2: Round to the nearest whole number 7.5 ?
Answer: 8
Q3: Round to the nearest whole number 3.2 ?
Answer: 3

Last edited by SteveB (2014-01-06 06:09:42)

#1366 2014-01-06 06:07:40

mandy jane
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Re: Mandy Jane's Corner

hi steveb can you show me how to do problum 2 please as i found it hard to do ok?

#1367 2014-01-06 06:11:22

SteveB
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Re: Mandy Jane's Corner

Right Andrew had 70 out of 560. So how do you calculate the decimal of the proportion that he is given ?

#1368 2014-01-06 06:12:17

mandy jane
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Re: Mandy Jane's Corner

hi bob buddy can you send me an email on how i know when somone has sent me a message on maths is fun as i don't know on my big computer on my ipayer a red light come on to let me know i have a message ok ?

#1369 2014-01-06 06:13:59

mandy jane
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Re: Mandy Jane's Corner

can you show me as i have forgot how to do that please?

#1370 2014-01-06 06:14:40

SteveB
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Re: Mandy Jane's Corner

Okay I was thinking about this fraction: (70 / 560)

What is that as a decimal ?
What is it as a percentage ?

#1371 2014-01-06 06:18:34

SteveB
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Re: Mandy Jane's Corner

You can use your calculator for these.

#1372 2014-01-06 06:19:34

mandy jane
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Re: Mandy Jane's Corner

hi steveb i am very sorry but my little dog is playing up so i will have to sort her out so i will have to came back on here tomorrow night if ok with out? i am sorry about this send message back please

#1373 2014-01-06 06:21:58

SteveB
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Re: Mandy Jane's Corner

If you do on your calculator: 70 divided by 560 = ....
then you get 0.125
Let us assume the calculator is correct. This is the decimal equivalent of (70 / 560).
If you then do multiply by 100 to this number you get: 12.5
This is the figure for the percentage (12.5%).

#1374 2014-01-06 06:24:07

mandy jane
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Re: Mandy Jane's Corner

hi steveb hope you read my message i will have to come back on here tomorrow night ok if you dont mine? send message back please?

#1375 2014-01-06 06:24:09

SteveB
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Re: Mandy Jane's Corner

Do have a good look at the last few posts including my answers.
Try to understand how I have got my answers and follow each and every calculation with the help with your calculator.
I will be online for a meeting with you on Monday at 7pm.

Last edited by SteveB (2014-01-28 19:52:52)

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