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3 years ago

Three less than twice a number is fifteen what is the answer?

Mathematics

2 answers:

I am Lyosha [343]3 years ago

5 0

Answer:

2X–3 =15

2X=15+3

2X=18

X=18/2

X= 9

I hope I helped you^_^

Gwar [14]3 years ago

4 0

Answer:

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

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Sixty percent of the books at a library are non-fiction. The library has about 15000 books. How many of the library’s books are

ddd [48]

There are 9000 non-fiction books in the library.

$100:60::15000:x\\$ represents the situation.

Step-by-step explanation:

Given,

Total books at library = 15000

Percent of non-fiction books = 60

Percent of all books = 100

Ratio of percent of books to non-fiction books = 100:60

Let,

x represent the number of non-fiction books.

Ratio of number of all books to non-fiction books = 15000:x

Using proportion

Ratio of percent of books :: Ratio of number of books

$100:60::15000:x\\$

Product of extreme = Product of mean

$100*x=15000*60\\100x=900000$

Dividing both sides by 100

$\frac{100x}{100}=\frac{900000}{100}\\x=9000$

There are 9000 non-fiction books in the library.

$100:60::15000:x\\$ represents the situation.

Keywords: ratio, proportion

Learn more about proportion at:

#LearnwithBrainly

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3 years ago

Select all values of x that make the inequality true: (6x<24)

Stolb23 [73]

9514 1404 393

Answer:

A, B

Step-by-step explanation:

Divide both sides by 6 to see what those values should be:

x < 4

Of course all negative numbers are less than 4, so choices A and B are correct. The given positive numbers are not less than 4, so the remaining choices are not correct.

8 0

3 years ago

25 units 5 units x units

Sunny_sXe [5.5K]

Answer: It depends on the the question.

25 square units would be 5 times 5 units.

25 linear units would be 5 units plus 20 units.

Step-by-step explanation:

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3 years ago

At a Super Duper Saver Mart, you can now buy 25 cartons of mostly-melted ice cream for $4. How many Caron’s of mostly-melted ice

Alex73 [517]

Answer:

Step-by-step explanation:

$12 is 3 times $4, so we can expect to buy 3 times 25 cartons.

You can buy 75 cartons of mostly-melted ice cream for $12.

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3 years ago

Solve the inequality. Twice a number added to 5 is greater than or equal to -9.

Alla [95]

x = -7

2x + 5 is greater than or equal to -9 is the original expression.

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3 years ago