Algebra 2 Word Problem

Question

200,197,194,191,188 all represent the amount of money in cassandra's lunch account. which function could be used to find the balance of cassandra's lunch account at the end of day x?

 

a. x-3

b. -3x+203

c. -3x+200

d. 3x-203

Answer 1

Hi,

Since 200 is the initial amount, you can easily eliminate selections a,b, and d. C is the correct answer.

 

To go through the process of solving,

the amount is decreasing by 3. The amount in her account will be decreased by a multiple of 3,  minus 3x. 

 

200 - 3x OR -3x +200