3 is 20% of what number

Answers

Answer 1

Answer: First: (20/100)x = 3
Second: 20x / 100 = 3
Third: 20x = 3 * 100
Fourth/Final: x = 3*100/ 20 = 15
Answer:
15

Answer 2

Answer: Hi!

3 ⇒ 20%
x ⇒ 100%

20x = 3·(100)
20x = 300
x = 300/20
x = 30/2
x = 15

Answer:

3 is 20% of 15

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How do you multiply a decimal by a fraction

Answers

In order to multiply a fraction and a decimal, you have to either change the fraction to a decimal or change the decimal to a fraction then multiply ... for example

1/2 × .8 =

we can change 1/2 to a decimal by doing the division that is described by the fraction... the fraction bar literally means "divided by", so 1/2 means 1 ÷ 2 = .5

Now you can multiply
.8 × .5 = .40 or .4

The other choice would be to convert .8 into a fraction. Look at the place value... the 8 is in the 10ths place so the value is 8 tenths or 8/10. Now multiply
8/10 × 1/2 = 8/20 = 4/5

Arrange the digits 1-9 in the 9 boxes to make three equivalent fractions,all equal to 1/2

Answers

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how many more times intense is an earthquake that measures 8 on the richter scale than an earthquake that measures 5

Answers

Answer:

The earthquake that measures 8 on the Richter Scale is 1,000 times more intense than the earthquake that measures 5 on the Richter Scale.

Step-by-step explanation:

This is because each level on the Richter scale is 10 times more intense than the previous one. Therefore it would be ( 10 x 10 x 10 ) aka 1,000.

Evaluate 4x+2y-6z-x-3y+2z

Answers

3x-y-4z, just add/subtract the numbers with the same variable

Answer:

3x-y-4z

Step-by-step explanation:

How many grams are in 40 hectograms? 400 4,000 40,000 400,000

Answers

4000 grams in 40 hectograms

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Margaret has saved $400. She is going to spend one tenth ( 1/10) of her money on a shopping spree. How much money will Margaret spend?

Answers

Margaret will spend $40 because
400/10

400*.1=40 so margaret is going to spend 40 dollars

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