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Mathematics, 20.02.2020 03:46 abby894927
A food server examines the amount of money earned in tips after working an 8-hour shift. The server has a total of $133 in denominations of $1, $5, $10, and $20 bills. The total number of paper bills is 39. The number of $5 bills is 4 times the number of $10 bills, and the number of $1 bills is 1 less than twice the number of $5 bills. Write a system of linear equations to represent the situation. (Assume
x = number of $1 bills,
y = number of $5 bills,
z = number of $10 bills,
and
w = number of $20 bills.)
x + y + z + w = 133
x + y + z + w = 39
y − z = 0
x − y = −1
Use matrices to find the number of each denomination.
x = $1 bill(s)
y = $5 bill(s)
z = $10 bill(s)
w = 20 bills
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A food server examines the amount of money earned in tips after working an 8-hour shift. The server...
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