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OpenStudy (anonymous):
mrs. boyd has a desk full of quarters and nickels. if she has a total of 26 coins with a total face value of $5.10, how many of the coins are nickels?
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OpenStudy (slaaibak):
How much is a nickel?
OpenStudy (turingtest):
0.25x+0.05y=5.1 x+y=26 solve the system
OpenStudy (slaaibak):
There are x= quarters and 26 - x nickels. so 0.25x + (26 - x) * [VALUE OF NICKEL] = 5.1
OpenStudy (anonymous):
7 nickels
OpenStudy (turingtest):
yep
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OpenStudy (anonymous):
ty everyone
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