7 as a percentage of 20

Answers

Answer 1

Answer:

7 as a percentage of 20 just means what percentage of 20 is 7. To do this, we must divide 7 by 20. This is how you answer this. If you do so, then you will get 0.35. This shows that it is 35%. Note that when you get a decimal number, then you must multiply it by 100% to get the percentage equivalent of that number. Therefore, 7 as a percentage of 20 is 35%.

Answer 2

Answer: To find 7 as a percentage of 20, all you need to do is divide 7 by 20.

7 ÷ 20 = 0.35

And then, all we need to do is convert the resulting decimal into a percentage. We can do this by either multiplying the result by 100, or (my personal shortcut) just shifting the decimal point over two places to the left.

0.35 = 35%

Which is our answer.
7 is 35% of 20.
Hope that helped! =)

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me John Doe was figuring out his federal income tax. his income was $26,800 but he was able to subtract $5,000 in deductions. he paid 15% of the remaining income in tax. how much did he pay?

Answers

1- Subtract: 26,800-5,000= 21,800 (remaining)
2-15% of 21,800 = 15/100 * 21,800 = 15*218 = $3,270

Ariel travels 400 miles in 8 hours. What is her rate of change or rate?A) 40 miles per hour
B) 50 miles per hour
C) 55 miles per hour
D) 60 miles per hour

Answers

The rate of change is 50 just divide 400/8

Turn 8/200
into a decimal using an equivalent fraction show your steps

Answers

First I'd reduce it to 4/100 because every fraction is easier to make a decimal over 100. Now write the four and for every extra 0 add a 0 between the decimal and the number. the answer is 0.04 but also remember when using this trick. If the number over 100 has a decimal you have to keep those ones too

8/200
= (8/2) / (200/2)
= 4/100 (equivalent fraction)
= 0.04

The final answer is 0.04~

HELP ME PLEASE I BEG YOU!!!!!!!!!!!!!

Answers

the answer to this are:
1) D
2) A and B
3) C

hope this works.

3.) r=2: 2+4/15= 6/15=2/5

2.) -3a-15=a: the fraction is negative. meaning the answer is negative, leaving a and c as choices. You can't square a since it is on different sides of the equation leaving you with c.

1.) answer is 5(x+4)=30: 3 is 2, meaning you would use the 2.

What number is 40% of 720

Answers

you would have to set you problem up like
x 40
____=_____
720 100

you would multiply 40 by 720 then you would divide 28,800 by 100 your answer will be 288.

HELP PLEASE!!!!!! I REALLY NEED HELP!
(Science) (15 pts)

1. My amplifier uses a filament that requires a maximum of 5 volts at a current of 15 amperes.
Calculate the resistance of the tube. (Round to no more than two numbers to the right of the decimal)

2. How many ohms of resistance are present in a light bulb that draws 2 amperes at 120 volts?

3. A 250 watt radio will draw how many amps when operating on 240 volts? (Round to no more than two numbers to the right of the decimal)

Answers

The problems of physics that are given here can be solved using Ohms laws. As per the Ohms law, we can write
Resistance = Current/Voltage.
Now coming to the questions that are given.
1. In this question,
Current = 15 amperes
Voltage = 5 volts
Then
Resistance = 5/15
   = 1/3
   = 0.33 ohms
So the resistance of the tube will be 0.33 ohms
2. Given information's are noted below
Current = 2 amperes
Voltage = 120 volts
Resistance = 120/2
   = 60 ohms
So 60 ohms of resistance is present in the bulb.
3. Given information's
Current = 250 watt
Voltage = 240 volts
Resistance = 250/240
   = 25/24
   = 1.04 ohms.
The radio will draw 1.04 ohms.

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