SOLUTION: A store had a sale on t�shirts, during which they sold 186 t�shirts in three sizes, small, medium and large, and they made $1,892. Smalls sell for $8 each, mediums sell for $10 ea

Question 401803: A store had a sale on t�shirts, during which they sold 186 t�shirts in three sizes, small, medium
and large, and they made $1,892. Smalls sell for $8 each, mediums sell for $10 each,
and larges sell for $12 each. The total number of smalls and larges sold was 30 more than
the number of mediums sold. How many of each size t�shirt was sold?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
= number of small t-shirts
= number of medium t-shirts
= number of large t-shirts
given:
(1)
(2)
(3)
---------------------
This is 3 equations and 3 unknowns, so it's solvable
From (3):
(3)
Now add (1) and (3)
(1)
(3)

Subtract (3) from this equation:

From above,

Plug this into (2)
(2)

and, also,

46 = number of small t-shirts sold
78 = number of medium t-shirts sold
62 = number of large t-shirts sold
check answer:
(2)

and
(1)

OK
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