Why limit yourself to someone who lives nearby, when you can choose from tutors across the UK?

By removing time spent travelling, you make tuition more convenient, flexible and affordable

We've combined live video with a shared whiteboard, so you can work through problems together

All your tutorials are recorded. Make the most out of your live session, then play it back after

Percentages are always out of 100 - imagine the fraction 1/100. If I asked you to work out 1/100 of a number, how would you do it?

It's pretty much the same for percentages - because 1% is the same as 1/100. So you can apply the same principle to percentages.

If the number is too big, or you don't know that particular times table (most people don't know their 23 times table), you can try and break it down into smaller numbers. For this one, you could work out 20% and 3%. So how would you do that?

Divide 650 by 100 (6.5) and then multiply that by 20 (or by 10 and then by 2). Then you can do the same for 3% - divide 650 by 10 again and multiply it by 3. Then add the two together, and that should give you the answer.

1. 6.5 x 2 = 13.0

13.0 x 10 = 130.0

2. 6.5 x 3 = 19.5

3. 130.0 + 19.5 = 149.5

So Lisa has lost £149.50

If we think about a right angled triangle, it is the same as one half of a square or rectangle. This is because if we join two right angled triangles at their diagonal sides, we make a square or rectangle.

Now, in order to work out the area of a square or rectangle, we simply multiply the length and the width together.

However, we now have the area of a square or rectangle, when we actually need the area of the right angled triangle. To work out the area of the roght angled triangle, we must simply halve the area that we have worked out. This is because we have made the square or rectangle by putting 2 right angled triangles together. As there are 2 of them, we must simply divide the whole area by 2 in order to find the area of one right angled triangle.

This is why we say that in order to work out the area of a right angled triangle we simply do:

Length x Width and then divide the answer by 2

The most common way of doing this is called a bubble search (this may not be the technical name, but it's the one I was taught). The method is as follows:

Start by writing the number at the top of your page. Now find 2 numbers which multiply to that number (e.g. starting with 100, I might find 2 and 50). Draw lines down from 100 to the numbers 2 and 50. Check whether or not these numbers are primes (e.g. check whether 2 and 50 are primes - 2 is, 50 isn't). If you have found a prime number, draw a bubble around it. Now do the same process for 50. I find the factors 2 and 25. 2 is prime, 25 isn't. I draw a bubble around 2 and start again from 25. I find the numbers 5 and 5. both are prime so I bubble both.

Now that I've circled both numbers, my search is complete: the prime factors are the numbers in bubbles.

Note that, if neither number is prime, you have to apply the method to both numbers. Because of this, it's often best to find a prime number for one of the 2 numbers.

Some tricks to make this easier are:

If the number is even, use 2 as one of your factors.

If the number ends with a 5 or a 0, use 5 as one of your factors.

If the digits of the number add up to a multiple of 3, use 3 as one of your factors.

Start by multiplying the two numbers as though they didn't have a decimal point (e.g. 2.7*3.6 becomes 27*36 = 972). Now add up how many decimal places were in the original two numbers (e.g. 2.7 and 3.6 have 2 decimal places, 3.45 and 9.2 have 3 decimal places) and give your answer that number of decimal places (e.g. since 2.7 and 3.6 have 2 decimal places, 2.7*3.6 will have 2 decimal places. Calculate 27*36 = 972, then give it 2 decimal places to get 2.7*3.6 = 9.72).

Remember that, in this situation, zeroes should be counted as decimal places. For example: 1.02*4.05. Calculate 102*405 = 41,310. Now notice that 1.02 and 4.05 have 4 decimal places. Therefore, give 41,310 4 decimal places to find that 1.02*4.05 = 4.1310.

Step by step this is layed out as:

1) Multiply without decimal points.

2) Count the number of decimal places in the 2 numbers you're multiplying.

3) Give your answer to part (1) the number of decimal places from part (2).

Both are different ways to represent an amount of something. Fractions show how much of a whole item there is for example 2/10 2 parts out of a total of 10. On the other hand, a ratio describes one amount relative to another, for example 1:3 meaning 1 part of one amount corresponds to 3 parts of another amount, a good way to think about this is when making squash, you take an amount of squash, such as 10ml and add another amount of water, for example 100ml, the ratio would be 10:100, which can be simplified as 1:10, since there is 10 times more water as squash.

Answered by Alice C.

Studies Genetics at Cardiff

ok. Well think about a square. What times what creates the area of a square? Yes the bottom one and side on. So which do you think will be useful to know to find the area of a rectangle? Yes the same! So the area of this shape is 4x9 and what is that? Yes it is 36! So the answer is 36cm^3

Answered by Charlotte W.

Studies History and Innovation at Bristol

Company information

Popular requests

Cookies:

Are you there? â€“ We have noticed a period of inactivity, click yes to stay logged in or you will be logged out in 2 minutes

Your session has timed out after a period of inactivity.

Please click the link below to continue (you will probably have to log in again)

Every tutor on our site is from a **top UK university** and has been** personally interviewed** and ID checked. With over 7 applications for each tutor place, you can rest assured you’re getting the best.

As well as offering **free tutor meetings**, we **guarantee every tutor who has yet to be reviewed on this site,** no matter how much prior experience they have. Please let us know within 48 hours if you’re not completely satisfied and we’ll **refund you in full.**

Every time a student and parent lets us know they have enjoyed a tutorial with a tutor, one 'happy student' is added to the tutor's profile.

mtw:mercury1:status:ok

Version: | 3.26.0 |

Build: | b023f5b4f270 |

Time: | 2016-12-05T16:44:39Z |

Your message has been sent and you'll receive an email to let you know when responds.

Tutors typically reply within 24 hours.

Tutors typically reply within 24 hours.

Thanks , your message has been sent and we’ll drop you an email when replies. You should hear back within 24 hours.

After that, we recommend you set up a free, 15 minute meeting. They’re a great way to make sure the tutor you’ve chosen is right for you.

Thanks , your message has been sent and we’ll drop you an email when replies. You should hear back within 24 hours.

After that, we recommend you set up a free, 15 minute meeting. They’re a great way to make sure the tutor you’ve chosen is right for you.

**Limit reached ***(don't worry though, your email has still been sent)*

Now you've sent a few messages, we'd like to **give the tutors a chance to respond**.

Our team has been notified that you're waiting, but please contact us via

support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** if you're in a rush.

**Office hours are 8am to 7pm**, Monday to Friday, and we pick up emails on weekends.

Thanks,

The MyTutor team

**Limit reached ***(don't worry though, your email has still been sent)*

Now you've sent a few messages, we'd like to **give the tutors a chance to respond**.

Our team has been notified that you're waiting, but please contact us via

support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** if you're in a rush.

**Office hours are 8am to 7pm**, Monday to Friday, and we pick up emails on weekends.

Thanks,

The MyTutor team

**Limit exceeded ***(Your message will not be sent)*

You should have recieved a notification with your previous message, and **our team have also been notified that you're waiting.**

If you're in a rush, please contact us via support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** .

**Office hours are 8am to 7pm**, Monday to Friday. We also pick up emails on weekends.

Thanks,

The MyTutor team

**Limit exceeded ***(Your message will not be sent)*

You should have recieved a notification with your previous message, and **our team have also been notified that you're waiting.**

If you're in a rush, please contact us via support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** .

**Office hours are 8am to 7pm**, Monday to Friday. We also pick up emails on weekends.

Thanks,

The MyTutor team