Question

The temperature of a city changed by −20 degrees Celsius over a 4-week period. The temperature changed by the same amount each week. Write an expression to show the average change in the temperature of the city each week.

Answer 1

You have the total for 4 weeks and you want to know the amount for each week. What do you think, multiply, divide, add or subtract?

Answer 2

subtract

Answer 3

hi

Answer 4

no, division will divide the total into separate weeks. So you need to do
\[-20\div4\]
or
\[\frac{ -20 }{ 4 }\]

Answer 5

ok so that will give the avg for all 4 weeks