The expression.1*e^0.0347t models. The balance in thousand of dollars where t represents time. In years after the account was opened. What does the 0.034 represent in this context? Write an expression for the number of years after which there will be 15,000 Dollars in the account?

0.0347 = constant of proportionality

Step-by-step explanation:

Given

Solving (a): what does 0.0347 represent?

An exponential model is represented as:

Where:

constant of proportionality

So, by comparison:

Hence:

constant of proportionality

Solving (b): Formula to calculate when balance equals 15000

To do this, we simply equate the formula to 15000.

So, we have:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10