Answer:
She will have $25 per week Stacey's rate of change is $25.
She will have $300 After 12 weeks.
Step-by-step explanation:
Given : Stacey has a part-time job at the bike shop. She saves $100 every four weeks for a new car.
To find : Her rate of change After four weeks, she will have $ After 12 weeks , she will have $ per week Stacey's rate of change is $ ?
Solution :
In every four weeks she saves $100.
In every one week she save [tex]\frac{\$100}{4}[/tex].
In every one week she save $25.
After 12 week she save [tex]\$25\times 12[/tex].
After 12 week she save $300.
The rate of change is [tex]r=\frac{100-25}{4-1}[/tex]
[tex]r=25[/tex]
She will have $25 per week Stacey's rate of change is $25.
She will have $300 After 12 weeks.