Question 1:

how many. degrees warmer is the average temperature in november than in january?

write an equation. let x represent

x + = or x - =

solve the equation. show your work. the average temperature in november is warmer.

question 2:

suppose that during one period of extreme cold, the average daily temperature decreased 1 1/2 degrees fahrenheit each day. how many days did it take for the temperature to decrease by 9 degrees fahrenheit?

write an equation. let x represent

=

solve the equation. show your work. it took days for the temperature to decrease by 9 degrees fahrenheit.

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.