Answer:
359 long sleeve shirts were sold
Step-by-step explanation:
Step one:
given data
let long sleeve shirts be x
and short sleeve shirts be y
Long sleeve shirt sell for $12
short sleeve shirts are $2 less= 12-2= $10
They sell 606 shirts
x+y=606--------1
total cost of the shirts =$6,778.
12x+10y=6778-------------2
therefore the systems of equation for the situation si
x+y=606--------1
12x+10y=6778-------------2
from eqn 1, x=606-y
put x=606-y in eqn 2. we have
12(606-y)+10y=6778
7272-12y+10y=6778
solve for y
-2y=6778-7272
-2y=-494
2y=494
divide both sides by 2
y=4944/2
y=247
put y= 247 in eqn 1
x+247=606
x=606-247
x=359
Hence, 359 long sleeve shirts were sold?
