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natima [27]
3 years ago
14

Simple Cuts is a hair salon that offers two types of haircuts: a buzz cut and a flat-top. Jerry charges $9 for a buzz cut and $1

3 for a flat-top. If Jerry made $600 one day and knows that he cut three times as many buzzes as flat-tops, how many flat-tops did he cut that day?
Mathematics
2 answers:
Anon25 [30]3 years ago
6 0
Let x=the number of Buzz  & let y = number of flat:

9x+13y = 600

But 3x = y (given) then ==> 9x+(13)3x= 600==48x =600 x = 12.5

& y=37.5 (PROOF 9 x 12.5) + (13 x 37.5) =600
horsena [70]3 years ago
4 0
Well hmmm 
let's say 
b = amount of buzz cuts
f = amount of flat-top cuts

now, the total price for all the buzz cuts, since each one is $9, will then be 9*b or 9b

and the price for all flat-top cuts, since each is $13, will then be 13*f or 13f

one day Jerry made a total of $600, so we know, whatever "b" and "f" are, we know their price sum was 600,

thus    9b + 13f = 600

now, Jerry "<span>knows that he cut three times as many buzzes as flat-tops", so, whatever "f" is, "b" is three times that much, or 3*f, so b = 3f

now then     </span>\bf \begin{cases}&#10;9b+13f=600\\&#10;\boxed{b}=3f\\&#10;----------\\&#10;9\left( \boxed{3f} \right)+13f=600&#10;\end{cases}
<span>
solve for "f"</span>
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