Question

evaluate 0.8*0.8*0.8+0.5*0.5*0.5/0.8*0.8-0.8*0.5*0.5*0.5​

Answer 1

Answer:

Let's simplify numerator first;

$0.8*0.8*0.8 + 0.5*0.5*0.5 \\ \\ 0.512 + 0.125 \\ \\ 0.637$

Now, simply denominator ;

$0.8*0.8 - 0.8*0.5*0.5*0.5 \\ \\ 0.64 - 0.1 \\ \\ 0.54$

Now, division ..

$\bf division = \frac{0.637}{0.54} \\ \\ \boxed{ \bf 1.179}$

Answer 2

$\dfrac{0.8\times 0.8\times 0.8+0.5\times 0.5\times 0.5}{0.8\times 0.8-0.8\times 0.5\times 0.5\times 0.5}=1.179$

Step-by-step explanation:

Given : Expression

$\dfrac{0.8\times 0.8\times 0.8+0.5\times 0.5\times 0.5}{0.8\times 0.8-0.8\times 0.5\times 0.5\times 0.5}$

To find : Evaluate the expression ?

Solution :

$\dfrac{0.8\times 0.8\times 0.8+0.5\times 0.5\times 0.5}{0.8\times 0.8-0.8\times 0.5\times 0.5\times 0.5}$

$=\dfrac{(0.8)^3+(0.5)^3}{(0.8)^2-0.8\times (0.5)^3}$

$=\dfrac{0.512+0.125}{0.64-0.8\times 0.125}$

$=\dfrac{0.512+0.125}{0.64-0.1}$

$=\dfrac{0.637}{0.54}$

$=1.179$

Therefore, $\dfrac{0.8\times 0.8\times 0.8+0.5\times 0.5\times 0.5}{0.8\times 0.8-0.8\times 0.5\times 0.5\times 0.5}=1.179$

#Learn more

Find the value of :0.8×0.8+0.8-(0.8+0.8)

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