20 ×5=100 100-2=98 the answer would be she gave her back $2 because if you round u get 2 (I'm sorry if this makes no sense)
You did not include the context in which your question was asked so I cannot help you with this. If you were to add some context, then I'll try my best to help you! :)
Given:
Total number of friends = 5
Total cost of all five meals = $51.94
Sales tax = 6%
To find:
The cost of one meal before tax was added.
Solution:
Let x be the cost of all five meals before tax.
Then, Amount of tax = 6% of x
According to he question,
Divide both sides by 51.94.
So, the cost of all five meals before tax is $49.
Divide this cost by 5 to get the cost of one meal before tax was added.
Therefore, the cost of one meal before tax was added, is $9.8.
we are supposed to find
The derivative of the function
Differentiate both the sides wit respect to t we get
D = {3,6,12,18)
R = {5,7,9,10}
It is not a function since for the 6 value of x, there are two different y outputs