# Algebra 2

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A photocopying machine purchased new for \$4500 loses \$900 in value a each year.
a. Find the book value of the machine after 18 months.
b. When will the book value be \$1200?

Assume that each situation can be decribed as a linear equation

HELP!!! I don't know how to set this up but I know the answer

• Algebra 2 -

Value = 4500 - 900t, where t is the number of years

a) 18 months ---> t = 1.5
value = 4500 - 1.5(900) = 3150

b)
solve
1200 = 4500 - 900t

• Algebra 2 -

the charge for a one day rental of a car from Hawks car rental agency is \$24 plus 15 cents for each mile driven.
a) If sarah drives 85 miles in one day, how much is the charge?
b) If a one day rental cost Sarah \$42, how far did she drive?

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