SOLUTION: A blue pen is $0.25 more expensive than a black pen. At the store, Ms. Wing buys 10 black pens and 4 blue pens and pays a total of $20.00. If y represents the price of a black p

Question 1171402: A blue pen is $0.25 more expensive than a black pen. At the store, Ms. Wing buys 10 black pens and 4 blue pens and pays a total of $20.00.
If y represents the price of a black pen, write an expression to represent the price of a blue pen.
How much does a single black pen cost?
How much does a single blue pen cost?

Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
blue pen is black pen + 0.25 dollars.

blue pen, y+0.25
black pen, y

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Ms. Wing buys 10 black pens and 4 blue pens and pays a total of $20.00.
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