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nexus9112 [7]
3 years ago
11

Kevin and randy muise have a jar containing 68 ​coins, all of which are either quarters or nickels. the total value of the coins

in the jar is ​$13.40. how many of each type of coin do they​ have?
Mathematics
1 answer:
Monica [59]3 years ago
3 0
For this case, the first thing we must do is define variables:
 x: number of quarters
 y: number of nickels
 We now write the system of equations:
 x + y = 68
 0.25x + 0.05y = 13.40
 Solving the system we have:
 x = 50
 y = 18
 Answer:
 
they have:
 
quarters = 50
 
nickels = 18
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