Question

The label on a car's antifreeze container claims to protect the car at temperatures greater than −30°C and less than 130°C. To convert Celsius temperature to Fahrenheit temperature, the formula is C equals five ninths times the quantity F minus thirty two.. Write a compound inequality to determine the Fahrenheit temperature range at which the antifreeze protects the car.

Negative thirty is greater than five ninths times the quantity F minus thirty two is greater than one hundred thirty.
Negative thirty is less than five ninths times the quantity F minus thirty two is less than one hundred thirty.
Negative thirty is less than five ninths times the quantity F minus thirty two.
Five ninths times the quantity F minus thirty two is less than one hundred thirty.

Answer 1

Negative thirty is less than five ninths times the quantity F minus thirty two, and this value is less than one hundred thirty.