SOLUTION: Nick works part-time at a bookstore. His pay varies directly with the number of hours worked. In one week, he earned $120 for 8 hours of work. a) Define two variables for this

Question 1183048: Nick works part-time at a bookstore. His pay varies directly with the number of hours worked. In one week, he earned $120 for 8 hours of work.
a) Define two variables for this relation.

b) Describe the rate of change in words.

c) Determine an equation to represent the relation:

d) Use the equation to determine how many hours Nick must work to earn $345
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
w, amount of pay or wages
x, time worked in hours
k, variation constant; actually his hourly pay rate

The description includes data that w=120 and x=8. You can find k.
Answer by ikleyn(52788)   (Show Source): You can put this solution on YOUR website!
.

This problem is good to develop your common sense, instead of (and rather than) making formal exercises.

From the problem's description, the hourly earning rate is 120/8 = 15 dollars per hour.

After that, you can easily answer all other/remained questions.

                                REMEMBER and MEMORIZE it:

            all these formal exercises in this problem are worth NOTHING.

It is only BAD EDUCATIONAL system/conception may allow/produce such teaching as questions in this problem . . .

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