#53 Exponential Growth and Decay

Front

Back

Front

Back

Exponential Decay

Front

You borrowed $1,690 for 5 1/2 years at an interest of 5.7% compounded annually. How much extra did you pay by taking out the loan? Options:

$622.27

,

$2,292.45

,

$1,87.55

,

$3,982.45

Back

$622.27

Front

Jenny invests $7,530 in a savings account with a fixed annual interest rate compounded continuously. After 8 years, the balance reaches $12,169.04. What is the interest rate of the account?

Back

6%

Front

Write an exponential equation for the situation and use it to find the answer: 583,448, 24,302, 402,000, 689,247

Back

583,448

Front

Value of land purchased for $30,000 in 1960 with 5% annual increase by 2011?

Back

$344,022

Front

An adult takes 400 mg of ibuprofen. Each hour, the amount of ibuprofen in the person’s system decreases by about 29%. How much ibuprofen is left after 6 hours?

Back

70 mg

Front

A computer bought for $2100 decreases by 50% annually. When will its value be $600?

Back

between 1 and two years