Math homework, any help?!
If anybody could help me with this question, it would be great as I have to hand in this homework tomorrow!
A bag contains 8 coins of 1 pound, 7 coins of 50p, 4 coins of 25p and 3 coins of 10p. In howmany different ways can we take 6 coins from the bag?
Cheers!
A bag contains 8 coins of 1 pound, 7 coins of 50p, 4 coins of 25p and 3 coins of 10p. In howmany different ways can we take 6 coins from the bag?
Cheers!
In total there are 8+7+4+3 coins = 22 coins
So if you take one coin, there are 21 possibilities left... then this repeats over and over
So I think the answer is 22 x 21 x 20 x 19 x 18 x 17 = 53721360 possibilities? wow that seems wrong and kinda big idk
but this would only be if it didnt matter if you took the same type of coin in a row - eg a £1 then a £1
So if you take one coin, there are 21 possibilities left... then this repeats over and over
So I think the answer is 22 x 21 x 20 x 19 x 18 x 17 = 53721360 possibilities? wow that seems wrong and kinda big idk
but this would only be if it didnt matter if you took the same type of coin in a row - eg a £1 then a £1
the pictogram shows the number of lipstick sold by a shop on each of monday ,tuesday and wednesday
Original post by dharmik vala
the pictogram shows the number of lipstick sold by a shop on each of monday ,tuesday and wednesday
Bold hijack.
Quick Reply
Related discussions
- My year 10 gyg :)
- maths department burning us out
- Binomial Expansion Help
- Grind to GYG
- Jieay's Year 13 GYG - Actuarial Science applicant (2023/2024)
- Struggling with WJEC Further Maths A Level
- FANB1984's GCSE (YR 11) GYG
- tackling homework and revision
- Best timetable for studying 4 subjects?
- Hopefully I will cry tears of joy
- trying to get all As for AS
- Mathswatch
- Sixth Form Help! (NCS vs LAET)
- I'm on the verge of a mental breakdown
- live, laugh, love (and sometimes cry) - a blog <3
- Sparx maths homework
- Distance learning Edexcel International A-levels?
- investing in my future - a y12 blog
- Stressed about starting A-Levels
- Chemical engineering maths help
Latest
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
