SOLUTION: A grocer buys lettuce for $5.20 a crate. Of the lettuce he buys, 10% cannot be sold. If he charges 40 cents for each head he sells and makes a profit of 10 cents on each head he bu

Question 859959: A grocer buys lettuce for $5.20 a crate. Of the lettuce he buys, 10% cannot be sold. If he charges 40 cents for each head he sells and makes a profit of 10 cents on each head he buys, how many heads of lettuce are in a crate?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
He makes a profit of cents on each head he buys.
So, he makes a profit of cents on each head in a crate
Let = the number of heads in a crate
10% cannot be sold, so he sells heads at cents each
is what he sells the heads for
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The grocer's profit is ( 10 cents on each head int he crate )

There are 20 heads in a crate
---------------------------
check:
10% can't be sold- that is heads
He sells heads at 40 cents each

----------------
His profit is dollars

OK

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