GCSE Secondary Maths Age 13-17 - Algebra: Temperature - Centigrade and Fahrenheit - Explained

The video tutorial explains how to convert temperatures from Fahrenheit to Celsius using a specific formula. It includes an example problem involving Mrs. Smith's home temperature to determine if it meets the minimum requirement for elderly homes. The tutorial also covers rearranging the formula to make Fahrenheit the subject, providing step-by-step guidance on the algebraic process.

What is the formula used to convert temperatures from Fahrenheit to Celsius?

• C = (F + 32) * 9/5

• C = (F - 32) * 9/5

• C = (F + 32) * 5/9

• C = (F - 32) * 5/9

What is the minimum temperature in Celsius that should be maintained in an elderly person's home?

• 18 degrees Celsius

• 20 degrees Celsius

• 25 degrees Celsius

• 22 degrees Celsius

After converting 77 degrees Fahrenheit, what is the temperature in Celsius?

• 27 degrees Celsius

• 22 degrees Celsius

• 25 degrees Celsius

• 20 degrees Celsius

Is Mrs. Smith's home temperature higher or lower than the minimum required temperature?

• Equal

• Higher

• Cannot be determined

• Lower

How many marks were awarded for correctly substituting the value into the formula?

• Two marks

• One mark

• Four marks

• Three marks

What is the first step in rearranging the formula to make Fahrenheit the subject?

• Add 32 to both sides

• Multiply both sides by 9

• Divide both sides by 5

• Subtract 160 from both sides

What is the final rearranged formula to make Fahrenheit the subject?

• F = (5C + 160) / 9

• F = (5C - 160) / 9

• F = (9C + 160) / 5

• F = (9C - 160) / 5