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2. A company bought a machine and its value is estimated to depreciate on a straight-line basis. After 4 years of use the value of the machine is $49,500 and after 7 years of use value is $33,750. b. C. Determine the equation that expresses the value of the machine (V) in terms of the years of use (x). The equation that expresses the value of the machine (V) in terms of years of use (x) is How much does the value of the machine depreciate annually? The value of the machine depreciates annually. What is the original value of the machine? The original value of the machine is 3. Gabriela deposited $2,500 in an account that pays 1.85% simple interest per year. What is the cumulative amount after 72 years? The accumulated amount after 7 years is 4. Fabian deposited $5,000 in an account that pays 2.15% simple interest per year. He wishes to have the amount of $6,343.75 in the account. How many years must elapse for that amount to accumulate? They must pass. years to accumulate the amount of $6,343.75.