/sci/ - Science & Math

[Anonymous No.8862731]

How many bakers are there in a group of 27 cooks and bakers if there
are four fifths as many cooks as bakers?

[Anonymous No.8862737]

There are 15 bakers.

[Anonymous No.8862742]

B(0.8) + B = 27

[Anonymous No.8862763]

27 because all bakers can cook but not all cooks can bake.

[Anonymous No.8862767]

2

[Anonymous No.8862821]

>>8862731
This is an example of the kind of problem that will break your fucking brain unless you're naturally really good at math or you know algebra but with algebra becomes trivial, see >>8862742

[Anonymous No.8862894]

c+b=27
c+(4/5)c=27
c=27(5/9)
=15
bakers=12
get yo facts right

[Anonymous No.8862910]

>>8862894
>there are four fifths as many cooks as bakers
>conclude there are more cooks than bakers
anon....

[Anonymous No.8864760]

>>8862767
This.

[Anonymous No.8864780]

>>8862731
15

[Anonymous No.8864794]

matrix A

[math]
\begin{matrix}
1 & 1 \\
-0.8 & 1
\end{matrix}
[/math]

matrix B

[math]
\begin{matrix}
27 \\
0
\end{matrix}
[/math]

just use the formula everyone knows to get your answer
[/math]A^-1B[/math]

[Anonymous No.8864800]

>>8862731
4 + 5 = 9
27 ÷ 9 = 3
3 × 5 = 15
Did this in my head in a few seconds

[Anonymous No.8865105]

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