Martin has a combination of 33 quarters and dimes worth a total of 6 dollars Which system of linear equations can be used to find the number of quarters, q , and the number of dimes, d , Martin has?
Answer
A
q plus d is equal to 33 25 q plus 10 d is equal to 6
B
q plus d is equal to 33 0 point 25 q plus 0 point 1 d is equal to 6
C
q plus d is equal to 6 25 q plus 10 d is equal to 33
D
q plus d is equal to 6 0 point 25 q plus 0 point 1 d is equal to 33
Explanation
The total number of coins is 33, so q + d = 33. A quarter is worth $0.25 and a dime is worth $0.10, and together the coins are worth $6, so 0.25q + 0.1d = 6. These equations match choice B, which uses dollar values for the coins.
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