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Sample edHelper.com - Logarithm Word Problems Worksheet

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Exponent and Logarithm Applications
Complete

 1 A translucent plastic paper reduces the intensity of light that passes through it by eight percent. Amy wants to combine a number of these papers to only allow at the most forty percent of light to pass through. How many translucent plastic papers should Amy use?
 2 Jill's investment in a bank account will be worth \$3,746.42 in six months. The current value of Jill's account is \$3,600. If the bank pays a fixed rate that is compounded monthly, how much will the account be worth in two years?
 3 Brad spent \$1,200 on a credit card this month. The credit card charges 24.77% interest compounded continuously. If Brad does not have to pay any monthly minimums and makes no payments, how long will it take until Brad owes the credit card company \$2,400?
 4 The half-life of a radioactive substance is one hundred fifty-three days. How many days will it take for seventy percent of the substance to decay?

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