The current in a 120-V reading lamp is 2.4 A. If the cost of electrical energy is $0.090 per kilowatt-hour, how much does it cos
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Answer:
-19/132
Step-by-step explanation:
To add fractions, find the lowest common multiple of the two denominators and multiply accordingly to make both denominators the same. In this case, the lowest common multiple of 11 and 12 is 132, so we need to multiply the first number by 12 and the second by 11. So we get =
=
