Q&A - P4 Math

[pineapple tarts]

Sorry, can I ask how to solve the following question :


Mary spent $40 on 4 hairclips and 4 hairbands. 2 hairclips cost as much as 2 hairbands. FInd the cost of 1 hairband.

[KuroYuri]

pineapple tarts:

Sorry, can I ask how to solve the following question :


Mary spent $40 on 4 hairclips and 4 hairbands. 2 hairclips cost as much as 2 hairbands. FInd the cost of 1 hairband.

2 hairclips=2 hairbands, so
4 hairclips+4 hairbands

assume the cost of 1 hairclip is 1u. 2 hairclips=2u, therefore 2 hairbands=2u (since 1 hairband is also 1u)
2hairclips+2hairbands=4u
4hairclips+4hairbands=8u($40)
(draw model)

since 1 hairband is 1u, simply divide $40 by 8 and u will get your ans.
Hope that was clear enough.

[pineapple tarts]

Sorry, my question was wrong. Correction below.


Mary spent $40 on 4 hairclips and 4 hairbands. 2 hairclips cost as much as 3 hairbands. FInd the cost of 1 hairband.

[MathIzzzFun]

pineapple tarts:

Sorry, my question was wrong. Correction below.


Mary spent $40 on 4 hairclips and 4 hairbands. 2 hairclips cost as much as 3 hairbands. FInd the cost of 1 hairband.

Hi

4 clips + 4 bands = $40
2 clips + 2 bands = $ 20
Since 2 clips = 3 bands, 3 bands + 2 bands = $ 20 ie 5 bands = $20, so 1 band = $4

cheers.

[pineapple tarts]

MathIzzzFun:

pineapple tarts:

Sorry, my question was wrong. Correction below.


Mary spent $40 on 4 hairclips and 4 hairbands. 2 hairclips cost as much as 3 hairbands. FInd the cost of 1 hairband.

Hi

4 clips + 4 bands = $40
2 clips + 2 bands = $ 20
Since 2 clips = 3 bands, 3 bands + 2 bands = $ 20 ie 5 bands = $20, so 1 band = $4

cheers.

Many thanks MathIzzzFun,

Can I ask, I keep seeing it as 3 bands + 3 bands = $20.
I cannot see 3 bands + 2 bands. pls enlighten me.

[just888]

pineapple tarts:

MathIzzzFun:

Many thanks MathIzzzFun,


Can I ask, I keep seeing it as 3 bands + 3 bands = $20.
I cannot see 3 bands + 2 bands. pls enlighten me.

Hi pineapple tart, it was stated in the question that 2 hair clips is the price of 3 hair bands. Since 2clips + 2 bands = 20
Therefore replacing the 2 clips with the clips 3 bands you will have: 3 bands + 2 bands bands=20

[pineapple tarts]

OMG, I must be blind !! :thankyou:

[MathIzzzFun]

pineapple tarts:

MathIzzzFun:

[quote=\"pineapple tarts\"]Sorry, my question was wrong. Correction below.


Mary spent $40 on 4 hairclips and 4 hairbands. 2 hairclips cost as much as 3 hairbands. FInd the cost of 1 hairband.

Hi

4 clips + 4 bands = $40
2 clips + 2 bands = $ 20
Since 2 clips = 3 bands, 3 bands + 2 bands = $ 20 ie 5 bands = $20, so 1 band = $4

cheers.

Many thanks MathIzzzFun,

Can I ask, I keep seeing it as 3 bands + 3 bands = $20.
I cannot see 3 bands + 2 bands. pls enlighten me. [/quote]Hi

hope this helps ...

http://i39.tinypic.com/21o0dwx.jpg\">

cheers.

[pineapple tarts]

Thank you for your help, we solved all the (this type) questions.

[sokk]

Hi,

I need help for the following question.

Michelle has more than 50 hairpins.
If she puts them in packets of 7, she has 5 hairpins left.
If she puts them in packets of 9, she has 6 hairpins left.
How many hairpins does Michelle have?

Thanks!