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Grade 7 - Mathematics5.5 Temperature Conversion using Formula - Fahrenheit and Celcius

 Example: The temperature in Celcius degrees 'C' can be changed to Fahrenheit degrees 'F' by the formula F = (1/5)*(9C+160). Make C the subject of the formula, then find C when F = 212 degrees. Solution: F = (1/5)*(9C+160) Multiply both sides with 5, we get 5F = 5*1/5*(9C+160) 5F = 9C+160 5F-160 = 9C 5(F-32) = 9C C = 5/9*(F-32) If F = 212 degrees Substitute F value in above equation, we get C = 5/9*(212-32) C = 5/9*180 C = 5*20 C = 100 degrees. Directions: Solve the following problems and show your work. Also write at least ten examples of your own.

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Grade 7 - Mathematics5.5 Temperature Conversion using Formula - Fahrenheit and Celcius

 Q 1: Change 113 degree Fahrenheit degrees into Celcius.35 Celcius degrees45 Celcius degreesNone of these55 Celcius degrees Q 2: Change 95 degree Fahrenheit degrees into Celcius.None of these45 Celcius degrees55 Celcius degrees35 Celcius degrees Q 3: Change 15 degree Celcius degrees into Fahrenheit.65 Fahrenheit degrees59 Fahrenheit degrees84 Fahrenheit degreesNone of these Q 4: Change 77 degree Fahrenheit degrees into Celcius.35 Celcius degreesNone of these45 Celcius degrees25 Celcius degrees Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!

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