80. Vacation Money Heather has saved $177 to take with her on the family vacation. She has 51 bills consisting of $1, $5, and $10 bills. If the number of $5 bills is three times the number of $10 bills, find how many of each bill she has.

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Q: Can you answer this

A: Solution and Explanation is given below....

Q: What do I have to do ?

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A: Note :  1. Corresponding angles are equal. 2. Alternate exterior angles are equal.

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A: NOTE: Refresh your page if you can't see any equations. . first, we need to simplify the given…

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A: Since you have posted multiple sub-parts of question , we will solve first three  sub-parts for you.…

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.