Question

The temperature is changing every day by -7/18 degrees Fahrenheit. What will be the change in the temperature after 3 days?

Answer 1

Let the temperature today be x °F.

Change in temperature after 1 day =
`(x - (7)/(18) )` °F

Change in temperature after 2 days =
`(x - (7)/(18) ) - (7)/(18) = (x - 2*(7)/(18) )` °F

Change in temperature after 3 days
=
`(x - 2*(7)/(18) ) - (7)/(18) = (x - 3*(7)/(18) )=(x - (7)/(6) )`°F

Answer 2

multiply -7/18 x 3 days

-7/18 x 3/1 = -21/18 = -1 3/18 = -1 1/6 change