The expression 1^4y-15^-1+3^-1 is equal to:

We simplify the expression to yield: 1^4y-15^-1+3^-1=15^-1+3^-1=115+13=1815=158. Thus our answer is 158.

smc

prealgebra intermediate

Problem

The expression

\frac{1 ^{4 y - 1}}{5 ^{- 1} + 3 ^{- 1}}

is equal to:

(A)

\frac{4 y - 1}{8}

(B)

8

(C)

15/2

(D)

15/8

Solution

We simplify the expression to yield:

\frac{1 ^{4 y - 1}}{5 ^{- 1} + 3 ^{- 1}} = \frac{1}{5 ^{- 1} + 3 ^{- 1}} = \frac{1}{\frac{1}{5} + \frac{1}{3}} = \frac{1}{\frac{8}{15}} = \frac{15}{8}

. Thus our answer is

\frac{15}{8}

Final answer