(this is Linear Systems of Equations) Companies X, Y, and Z can produce a total of 7400 computers per day. X and Y together can produce 4700 computers, while Y and Z can produce 5200 computers together. How many computers can each company produs by itself?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

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