tina works 15 hours a week (monday to friday). last week she worked 3 1/2 hours on monday, 4 hours on tuesday, 2 1/6 hours on wednesday and 1 1/2 on thursday. how many hours did she works on fridays​

Tina worked hours on Friday.

Step-by-step explanation:

To solve for how many hours Tina worked on Friday you have to add up all the hours worked then subtract that from 15 hours to get the remainder.

Step 1 : Add up all the hours worked so far.

+ 4 +  + = ?

We need to turn these mixed numbers into improper fractions first so we can add. Let's turn them all into sixths.

+ 4 + + =

Allright, so now we know that Tina already worked 11 and 1/6 hours already, so we subtract that from 15 to find how many hours she worked on Friday.

Step 2 : Subtract from 15.

15 - =

Therefore Tina worked hours on Friday.

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step-by-step explanation: