7500 dollars is placed in an account with an annual interest rate of 5.25%. To the nearest tenth of a year, how long will it take for the account value to reach 25200 dollars?

After the amount will reach to .

Step-by-step explanation:

Given that,

                  Principle Amount

                  Rate of Interest %

                  Total Amount

Now,

        If Principle , Time years, Rate %

then, Amount after years

⇒

⇒

⇒

⇒

taking log both sides, we get

⇒

⇒

⇒

⇒

Therefore,

After the amount will reach to .

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions