Question

please answer both... it's urgent ​

Answer 1

Solution for What is 50 percent of 20:

50 percent *20 =

(50:100)*20 =

(50*20):100 =

1000:100 = 10

Now we have: 50 percent of 20 = 10

Question: What is 50 percent of 20?

Percentage solution with steps:

Step 1: Our output value is 20.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$20=100\%$.

Step 4: Similarly, $x=50\%$.

Step 5: This results in a pair of simple equations:

$20=100\%(1)$.

$x=50\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{20}{x}=\frac{100\%}{50\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{20}=\frac{50}{100}$

$\Rightarrow x=10$

Therefore, $50\%$ of $20$ is $10$

Answer 2

Step-by-step explanation:

d) Given that :-

50% of 20% of 10%

=>(50/100)×(20/100)×(10/100)

=>(1/2)×(1/5)×(1/10)

=>1/(2×5×10)

=>1/100(or) 1%

e)-x³+x²-x⁴

=-x⁴-x³+x²

=>x²(-x²-x+1)