Concept explainers
In the following descriptions, write an expression in terms of the given variable that represents the indicated quantity.
a. The cost of having a plumber spend h hours at your house if the plumber charges $50 for coming to the house and $60 per hour for labor
b. The amount of money in cents in a jar containing d dimes and some nickels and quarters if there are 3 times as many nickels as dines and 3 times as many quarters as nickels
c. The sum of three consecutive integer if the least integer is x
d. The number of bacteria after n min if the initial amount of bacteria is q and the number of bacteria doubles every minute (Hint: The answer should contain q as well as n.)
e. The temperature after t hr if the initial temperature is
f. Pawel’s total earning after 3 yr if the first year his salary was s dollars, the second year it was $5000.00 higher, and the third year it was twice as much as a the second year
g. The sum of three consecutive odd natural numbers if the least is x
h. The sum of three consecutive natural number if the middle is m
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A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
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