Chapter 1, Problem 62RE

2500= x( (1+ 25 25

Write a formula for the price p of a gallon of gas in t days if the price is $4.60 on day t=0 and the price is: (a) Increasing by $0.01 per day.p=     (b) Decreasing by $0.03 per day.p=

Hourly salary If you earn $225 for 37 1/2 hours of work, how much should you earn for 46 1/2 hours of work at the same rate of pay?

A company buys a machine for $175,000. During the next 5 years, the machine will depreciate at a rate of 30% per year. (That is, at the end of each year, the depreciated value will be 70% of what it was at the beginning of the year.) (a) Write an expression for the value of the machine after n years. (b) Compute the depreciated values of the machine for the first 5 years.

A 2 2. Find he valyeelawhen A/=4

1J Each time that Rishanna rides the commuter frain, she spends $4 for her fare. Write an expression to represent the change in Rishanna's money from riding the commuter train to and from work for 13 days. Then, solve for the change in her money after 13 days.

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McGraw-Hill Education FINANCIAL LITERACY The expression c(1 + r) can be used to estimate the future cost of an item due to inflation, where c represents the current cost of the item, r represents the annual rate of inflation, and t represents the time in years. Write the expression in radical form for the future cost of an item 3 months from now if the annual rate of inflation is 4.7%. c(1 + r)' McGraw-Hill Education Think About It! = = = Why did you set t equal to 1? c(1+0.047) +0.047) = c(1.047) cv1.047 47283139 DOT APERITIRA 172960 A ONE DOLA CRY 20 Famosos 14885798 Credit We MLC the FIVE MO877070490 G7 -Esatar A THE UNITED STATES OF AMERICA JE 71172960 A DOLLARS r = 0.047, t Add. b = = √√/b vb DINT [11 K "ESSA K 65180940 ASERBACO