10 points Elizabeth was cleaning her purse on Monday. She discovered $4.60 in the bottom of her purse. The coins were only dimes and nickels. She had a total of 49 coins
and solve a system of equations to determine how many of each coin Elizabeth has.
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I

$4.60= 49 coins ( she only had dimes and nickles)

100 dimes= $1.00 times 4 is 400 dimes

12 nickels= .60 cents

                                              all of this will = to $4.60

Mean= (-) 9.5

Explanation:

We have given that ,

The set of numbers are -11, -22, -2, -3

Since we have  the numbers which are negative only  so the mean will be negative as well.

∴ Mean =

So it becomes ,

Mean =

         =

         = (-)9.5

∴ Mean of given set of numbers = (-) 9.5