a = dollars per hour
b = hours
c = tips
d = total amount
Let's say, for example, that the waiter makes $7.25 per hour (today's minimum wage).
a = $7.25
The average hours worked per day is 7 hours.
b = 7
tips will remain as a variable
c = t
dollars made at the end will also be a variable (as you do not know the tip)
d = d
So you're equation will look like:
7.25(7) + t = dNote that 7.25(7) = 50.75tips | total----------------$1 | $51.75$1.50 | $52.25$2 | $52.75
-----------------------------------------------------------------------------------------------------a = dollars per hour
b = hours
c = tips
d = total amount
Another variable you can make (if you do not follow the 7 hour work day), is the amount of hours worked each day
Let us say that the waiter still makes $7.25
a = $7.25
hours (b) = h
tips (c) = $2.00
total amount (d) = d
You're equation will be: 7.25(h) + 2 = d
h | d
--------------
1 | $9.25
2 | $16.50
3 | $21.75
____________________________________________________________
hope this helps
