Question 1072627: 1) A jar holding 36 coins, only nickels and quarters, is worth $6.20. There are eight more quarters than there are nickels. How many nickels are in the jar?
2)Vito made a deposit of $196 into his checking account. If this deposit had 60 bills, some being one dollar bills and the rest being five-dollars bills, how many of each bill did he deposit?
3) A clothing manufacturing company spent $1,000 researching new t-shirt designs. It will cost the company $4.50 to manufactures each t-shirt and will sell each shirt for $12.00.
How many t-shirts must the company sell in order for their costs to equal their profit(break-even)?
Answer by josgarithmetic(39625)   (Show Source):
You can put this solution on YOUR website! Three almost different questions; only #3 being done here.
Note that "break-even" means profit of 0, and that cost equals revenue.
ITEMS SOLD: x
COST: 1000+4.5x
REVENUE: 12x
EQUATION FOR BREAK-EVEN: 1000+4.5x=12x
x= 133 or 134
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