Question

The temperature of a city changed by -20°C over a four week. If the temperature changed by the same amount each week write an expression to show the average change in the temperature of the week simplify the expression and explain using words what your answer means

Answer 1

A)
`T=(-20)/(4)`

B) T = -5 °C

Explanation:

A) Let T be the change in temperature of the week. T is determined as the total temperature change (-20°C) divided by the number of weeks that have passed (4 weeks). The expression is:

`T=(-20)/(4)`

B) In order to simplify the expression, simply perform the division.

`T=(-20)/(4)\\T=-5^oC`

This means that the temperature has dropped by 5 degrees each week.