Question

Find the value of y.
(1) log5 25 = y

Answer 1

Answer:

2

Step-by-step explanation:

Rewrite as an equation.

log5(25)=x

Rewrite log5(25)=x

in exponential form using the definition of a logarithm. If x and b

are positive real numbers and

b does not equal 1, then

logb(x)=y

is equivalent to

by=x.5x=25

Create equivalent expressions in the equation that all have equal bases.

5

x

=

5

2

Since the bases are the same, the two expressions are only equal if the exponents are also equal.

x

=

2

The variable

x

is equal to

2

.

y

=

2