Question 1029325
Let {{{ s }}} = the sales on the 1st day
2nd day:
{{{ s + .25 }}}
3rd day:
{{{ s + 2*.25 }}}
4th day:
{{{ s + 3*.25 }}}
5th day:
{{{ s + 4*.25 }}}
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The sum is:
{{{ 5s + 10*.25 = 40 }}}
{{{ 5s = 40 - 2.5 }}}
{{{ 5s = 37.5 }}}
{{{ s = 7.5 }}}
the sales on the 1st day were $7.50
check:
7.50
7.75
8.00
8.25
8.50
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40.00 total