Question 1201132
Not the only way to assign variables, but.....
<pre>
PERSON TYPE        PRICE         HOW MANY       COST
Children             4           0.5(x+y)
Students             6              x
Adults               8              y
TOTAL                               750         4600
</pre>
And then to fill the COSTs
<pre>
PERSON TYPE        PRICE         HOW MANY       COST
Children             4           0.5(x+y)      2(x+y)
Students             6              x          6x
Adults               8              y          8y
TOTAL                               750         4600
</pre>

{{{system(0.5x+0.5y+x+y=750,2x+2y+6x+8y=4600)}}}


{{{system(1.5x+1.5y=750,8x+10y=4600)}}}


{{{system(x+y=500,4x+5y=2300)}}}-----------work with this system.