Rihanna has 5 less than 2 times as many homework problems to complete as her friend Terrika. The total number of homework proble
ms that Rihanna and Terrika have left to complete is 19. Write a system of linear equations to model this situation and calculate the number of homework problems each girl has left to complete. Use r to represent the number of problems Rihanna must complete and t to represent the number of problems Terrika must complete.
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Answer:
Step-by-step explanation:
Given
-- Mean of T-shirts
-- Standard deviation of T-shirts
Solving (a): The mean of the revenue
To solve this, we use:
This gives:
Solving (b): The standard deviation of the revenue
To solve this, we use:
This gives: