What is 80000(1+0.05)^{-3} ?

The solution to 80000(1+0.05)^{-3} is 69107.00788…

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simplify 80000(1+0.05)^{-3}

simplify

80000 (1 + 0.05)^{- 3}

69107.00788 \dots

Solution steps

80000 (1 + 0.05)^{- 3}

Apply exponent rule:

a^{- b} = \frac{1}{a ^{b}}

= 80000 \cdot \frac{1}{( 1 + 0.05 ) ^{3}}

Add the numbers:

1 + 0.05 = 1.05

= 80000 \cdot \frac{1}{1.0 5 ^{3}}

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 80000}{1.0 5 ^{3}}

Multiply the numbers:

1 \cdot 80000 = 80000

= \frac{80000}{1.0 5 ^{3}}

1.0 5^{3} = 1.157625

= \frac{80000}{1.157625}

Divide the numbers:

\frac{80000}{1.157625} = 69107.00788 \dots

= 69107.00788 \dots

4.5 \cdot 1 0^{- 3} \cdot 0.8

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e^{- l n (1 - t)}