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3 years ago

20 is 80 percent of what number?

Mathematics

2 answers:

ziro4ka [17]3 years ago

8 0

Answer: 100

Step-by-step explanation:

kotykmax [81]3 years ago

5 0

Answer:

The answer is 25.

Step-by-step explanation:

To find the answer of this problem, we multiply the number by the percentage. We represent 80% as 0.8 in decimal form

0.8 x 20 = 25

80 percent of 25 is 20.

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7 3/4 + (12 - 3 6/11) =

nataly862011 [7]

Answer:

$\frac{713}{44} = 16 \frac{9}{44}$

Step-by-step explanation:

7 3/4+ (12 - 3 6/11)

31/4 + (12 - 3 6/11)

31/4 + (12 - 39/11)

31/4 + 93/11

= 713/44 = 16 9/44

5 0

2 years ago

Read 2 more answers

What is the value of i 97 – i? –i 0 –2i i Superscript 96

Valentin [98]

The question is not clearly readable, but I'm assuming the expression which makes more sense, so you can have a clue

Answer:

$i^{97}-i=0$

Step-by-step explanation:

Powers of The Imaginary Unit

The imaginary unit i is defined as

$i=\sqrt{-1}$

The first powers of i are

$i^0=1$

$i^1=i$

$i^2=(\sqrt{-1})^2=-1$

$i^3=i.i^2=-i$

$i^4=i^2.i^2=1$

And so on the cycle repeats every four numbers. To find the value of $i^{96}$ we can find the remainder of 96/4=0. So $i^{96}=i^0=1$

The given expression is

$i^{97}-i$

Factoring

$i(i^{96}-1)$

Since $i^{96}=1$

$=i(1-1)=0$

The required value is 0

6 0

3 years ago

Read 2 more answers

spencer surveyed five of his friends to find out how many pets they have his results are shown in the table lara has 3 cody has

Phantasy [73]

The mean is the average.
Add all the number of pets and divide by how many people there were.
3+5+2+4+1
15/number of people
15/5
=3

Hope this helps :)

4 0

3 years ago

The entire expression, if simplified, would yield the total number of customers entering the backery on which day

Ede4ka [16]

Answer:

okay thanks for letting me know

Step-by-step explanation:

8 0

3 years ago

Describe how you could use algebraic operations to solve the equation 1 = -3x + 4

Anna11 [10]

Answer:

x=1

Step-by-step explanation:

3x=4-1

3x=3

x=1

3 0

3 years ago