Mathematics, 30.11.2020 22:10 yolo123321

Water freezes at 0 degrees Celsius, but the freezing temperature can be lowered by adding salt to the water. A student discovered that adding half a cup of salt to a gallon of water lowers its freezing temperature by 7 degrees Celsius. What is the freezing temperature of the gallon of salt water? Would it be 7 degrees Celsius or am I wrong?

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