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3 years ago

How do u convert decimals to percents and percents to decimals????????

2 answers:

7 0

To convert decimals to percents is to multiply by 100 then add a percent sign. To convert percents to decimals is to move the decimal point two places to the left or divide by 100 and remove the percent sign.

Step-by-step explanation:

Example:2.5%

2.5% can be expressed in decimal form as 0.025. Since a percent represents the part per 100 to convert a percent to a decimal divide 2.5 by 100.

2.5/100=0.025.

Example:2.5

2.5 can be expressed in percent form as 250%.Since a decimal represents a fraction and a percent is out of 100, to convert a decimal to a precent multiply 2.5 by 100.

2.5 x 100=250

Add the percent sign

250%

Oduvanchick [21]3 years ago

4 0

Answer:

To convert a decimal to percent, just multiply it by 100, or move the decimal place 2 times

Ex: 0.29 x 100 = 29

The answer would be 29%

To convert a percent to a decimal, do the opposite

Ex: 29%/100 = 0.29

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there are 3 seniors for every 2 juniors in the concert choir. if there are 21 seniors in all, how many jurors are in the concert

Oxana [17]

The ratio ...

... seniors : juniors = 3 : 2

can be multiplied by 7 to get

... = 21 : 14

indicating there are 14 juniors for the 21 seniors in the choir.

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3 years ago

A group of students is riding in a bike tour. They have biked 15 miles, which is 25% of the tour. How long is the tour?

igor_vitrenko [27]

Answer:

60 miles

Step-by-step explanation:

25% of 60 = 15

Hoped this helped<33

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2 years ago

If a pair of jeans cost 45 dollars before the sale and the sale is taking 9 dollars off of the original price what was the perce

Dvinal [7]

Answer:

20%

Step-by-step explanation:

A pair of jeans cost $45 before the sale.

The sale is taking $9 off of the original price.

Then

$45 - 100%

$9 - x%

Write a proportion:

$\dfrac{45}{9}=\dfrac{100}{x}$

Cross multiply:

$45\cdot x=9\cdot 100\\ \\45x=900\\ \\x=\dfrac{900}{45}\\ \\x=20\%$

3 0

3 years ago

The figure below shows a trapezoid, ABCD, having side AB parallel to side DC. The diagonals AC and BD intersect at point O.

Helga [31]

Answer:

I believe it's D.

Lmk if I was right, cause I'm 98% sure on this

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2 years ago

Samantha puts an initial $500 into a savings account. The account has a 4% annual compound interest rate. What is the function t

konstantin123 [22]

Hello! I can help you with this!

a. The function that would best represent Samantha's account is f(5) = 500(1 + 0.04)^5. This is because $500 is the principal, the interest rate is 4%, and we're looking for the amount in the savings account 5 years later.

b. Okay. 1 = 0.04 is 1.04. 1.04^5 is 1.216652902. It's a long decimal, but don't delete it. Multiply that decimal by 500 and you get 608.32645 and other numbers behind it or 608 when rounded to the nearest dollar. Samantha will have about $608 in her savings account in 5 years.

Note: The formula goes like this: f(x) = P(1 + r)^x. This means, you add 1 and the simple interest rate in decimal form together and raise that up by the exponent. There is no shortcuts for this, so you'll have to use the calculator. There will be a very long decimal, but don't clear it. Instead, multiply it by the principal to get the answer. It seems very complicating, but if you do this right, it gets easier overtime and you'll make less errors. There are more complex problems out there, so this formula is very important, but it was kept simple for this question.

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3 years ago