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maw [93]
3 years ago
13

220 is 20% of what number? Explain

Mathematics
2 answers:
Kitty [74]3 years ago
6 0
0.20a=220

Where 0.20 is the decimal form of 20% 
a is the unknown number

0.20a=220
-------   -----
0.20     0.20
a=1100

220 is 20% of 1100.
Ainat [17]3 years ago
6 0
<span>220= 20% "of" y -"of" means multiply! Convert the percent to a decimal
220= .2 * y -divide 220 by .2
1100= y </span>
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Step-by-step explanation:

Move all terms that don't contain p to the right side and solve.

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Please help! If the current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms, what is the voltage?
Leona [35]

The value of the voltage is 18 - j volts if the current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms option (c) is correct.

<h3>What is a complex number?</h3>

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

We have:

The current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms.

As we know,

V = IR

V = (3 + j2)(4 - j3)

\rm V=\left(3\cdot \:4-2\left(-3\right)\right)+\left(3\left(-3\right)+2\cdot \:4\right)j

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After simplification:

V = 18 - j  volts

Thus, the value of the voltage is 18 - j volts if the current in a circuit is 3 + j2 amps and the resistance is 4 - j3 ohms option (c) is correct.

Learn more about the complex number here:

brainly.com/question/10251853

#SPJ1

6 0
2 years ago
4c divided by 6 + 2a for c= 4 for a =5
Shalnov [3]

Answer:

<u><em>1</em></u>

Step-by-step explanation:

<u>Given values :</u>

<em>a = 5</em>

<em>c = 4</em>

<u>Substitution :</u>

<em>4c / 6 + 2a</em>

<em>4(4) / 6 + 2(5)</em>

<em>16/16</em>

= <u><em>1</em></u>

8 0
3 years ago
Read 2 more answers
HELP WHOEVER ANSWERS BOTH PARTS CORRECTLY GETS BRAINLIES.
zimovet [89]
550(055= -1233 if that’s helps :)
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3 years ago
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