SOLUTION: Some combination of quarters and dimes add up to $2.75. -Let x = number of quarters -Let y = number of dimes If y is a function of x, what is the domain when the total va

Question 1028328: Some combination of quarters and dimes add up to $2.75.
-Let x = number of quarters
-Let y = number of dimes
If y is a function of x, what is the domain when the total value is $2.75?
a) (0, 1, 3, 5, 7, 9, 11)
b) (1, 3, 5, 7, 9, 11)
c) (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
d) (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
25x + 10y = 275

Solutions:
x = 11, y = 0
x = 9, y = 5
x = 7, y = 10
x = 5, y = 15
x = 3, y = 20
x = 1, y = 25

Domain = set of all x-values = {1, 3, 5, 7, 9, 11}
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