Question

performance task
saffron is helping in a new pastry shop that has been open for two weeks.
pastry shop customers

week	number of customers
2	289
3	?

part a how many total customers did the pastry shop have in weeks 1 and 2?
part b what is the difference between the number of customers in weeks 1 and 2?
part c the pastry shops goal is to have 800 customers within the first 3 weeks. how many customers must visit in week 3 for the shop to reach the goal?
part d if the pastry shop has 847 visitors in the first 3 weeks, which week would have more customers: week 1 or week 3? how many more?

Explanation:

Step1: Calculate total for weeks 1 and 2

Add number of customers in week 1 and 2. $324 + 289=613$

Step2: Calculate difference between weeks 1 and 2

Subtract number of customers in week 2 from week 1. $324 - 289 = 35$

Step3: Calculate number of customers needed in week 3 to reach goal

Subtract total of weeks 1 and 2 from goal. $800-613 = 187$

Step4: Calculate number of customers in week 3 given total for 3 - weeks

Subtract total of weeks 1 and 2 from total for 3 weeks. $847-(324 + 289)=847 - 613=234$

Step5: Compare week 1 and week 3 customers and find difference

Since $324>234$, week 1 has more customers. Difference is $324 - 234=90$

Answer:

Part A: 613
Part B: 35
Part C: 187
Part D: Week 1 has more customers. 90 more.