It is a hot summer day, and Jade is trying to save money to buy a new shoe. She has 32 dollars, and she plans to sell smoothies at her neighborhood for four dollars a cup. At the end of the day, she is left with a total of 164 dollars in her wallet. How many smoothies did Jade sell?
The equation will simplify to a linear equation in n, which can be solved to find n.
n² +6n +8 = (n -2)(n -9) . . . . . . we assume this is your intent
n² +6n +8 = n² -11n +18 . . . . . . expand the right side
17n = 10 . . . . . . . . . . . . . . . . . . . add 11n -8 -n² to both sides
n = 10/17 . . . . . . . . . . divide by the coefficient of n
The number that makes the equation true is n = 10/17.
Answer:
i'd say no. the first hour he earned $20 but hour 2 is only a $10 increase...and so on...