The label on the car's antifreeze container claims to protect the car between −30°C and 130°C. To convert Celsius temperature to Fahrenheit temperature, the formula is C = 5 over 9 (F − 32). Write and solve the inequality to determine the Fahrenheit temperature range at which this antifreeze protects the car. −30 5 over 9 (F − 32) 130; −22 F 266 −30

Question

The label on the car's antifreeze container claims to protect the car between −30°C and 130°C. To convert Celsius temperature to Fahrenheit temperature, the formula is C = 5 over 9 (F − 32). Write and solve the inequality to determine the Fahrenheit temperature range at which this antifreeze protects the car. −30 > 5 over 9 (F − 32) > 130; −22 > F > 266 −30 < 5 over 9 (F − 32) < 130; −22 < F < 266 −30 < 5 over 9 (F − 32); −22 < F 5 over 9 (F − 32) < 130; F < 266

wanell · Answer

you are given the equation C = 5 over 9 (F − 32) and is asked to convert the range of temperature of antifreeze from degrees to Fahrenheit. In this case, the equivalent temperature of -40 C to fahrenheit is -40 F while that of 125 C is 257 F. Hence the range is from -40F to 257 F