Chapter 13, Section 13.1, Problem 018 Bob’s Pest Removal Service specializes in

Question

Chapter 13, Section 13.1, Problem 018

Bob’s Pest Removal Service specializes in removing wild creatures (skunks, bats, reptiles, etc.) from private homes. He charges $71 to go to a house plus $21 per hour for his services. Let y be the total amount (in dollars) paid by a household using Bob’s services and x the number of hours Bob spends capturing and removing the animal(s). The equation for the relationship between x and y is

y= 21x+71

a. Bob spent 3 hours removing a coyote from under Alice’s house. How much will he be paid?

Bob will be paid $_____ (exact number)

b. Suppose nine persons called Bob for assistance during a week. Strangely enough, each of these jobs required exactly hours. Will each of these clients pay Bob the same amount, or do you expect each one to pay a different amount?

a)Each of the clients will pay Bob the same amount.

b)Each of the clients will pay Bob a different amount.

c. Is the relationship between and exact or nonexact?

a) exact

b) not exact

Explanation / Answer

a) Bob will be paid =21*3+71 =134

b)  b)Each of the clients will pay Bob a different amount. (due to variability in time taken)

c) b) not exact

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