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Maru [420]
3 years ago
15

Double a number is equal to the number decreased by five. Find the number. A) -10 B) -5 C) 5 D) 10

Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
4 0
The answers be because it says DECREASED by 5 so it would be -5
dexar [7]3 years ago
3 0

Answer:

Option b) -5

Step-by-step explanation:

We are given the following information in the question:

Twice of a number is equal to number decreased by five.

Let the number be x. Then, this can be written in the form of equation:

2\times x = x-5

Solving the above equation:

2\times x = x-5\\2x-x = -5\\x = -5

Hence, the number is x = -5.

The correct answer is given by the option b) -5.

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Captain Ishaan has a ship, the H.M.S. Khan. The ship is two furlongs from the dread pirate Luis and his merciless band of thieve
Sidana [21]

Answer: \frac{4}{35}

Step-by-step explanation: The probability of Captain Ishaan hitting the pirate's ship is:

P(A) = \frac{4}{5}

The probability of the pirate hitting Captain's ship is:

P(B) = \frac{1}{7}

So, the probability of both hitting each other is a probability of A and B occuring, which means:

P(A) . P(B) = \frac{4}{5} . \frac{1}{7}

P(A) . P(B) = \frac{4}{35}

The probability of both the pirate and the Captain hit each other's ship is

\frac{4}{35} or 11.43%

3 0
3 years ago
It takes21 minutes for 5 people to paint 7walls. How many minutes does it take 3people to paint 5 walls?
scoray [572]

so 5 people work each one for 21 minutes, that means 21+21+21+21+21 minutes altogether, namely 105 minutes, it took that long for 7 walls, hmmmm how long for just one wall then? well, 105 ÷ 7, namely 15 minutes then, for just 1 wall.


now, if it takes 15 minutes of work to do one wall, what about 5 walls? well, that'd be 15*5 or 75 minutes.


so if we have 3 folks working, how much would each one work? well, 75 ÷ 3, namely 25 minutes, so each of them will work 25 minutes, namely 25+25+25 minutes, so in 25 minutes, they'll be done with 5 walls.

8 0
3 years ago
Which value makes the equation 2x -4 = 16 true? *
Alinara [238K]

Answer:

10 makes this equation true

Step-by-step explanation:

2x -4 = 16 /+4

2x= 20 /÷2

x= 10

Test

2(10) - 4 = 16

20 - 4 = 16 Correct

4 0
3 years ago
Read 2 more answers
What’s the equation for A slope =2 through the point (2,1)?
Fiesta28 [93]

Answer:

y = 2x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2, thus

y = 2x + c ← is the partial equation of the line

To find c substitute (2, 1) into the partial equation

1 = 4 + c ⇒ c = 1 - 4 = - 3

y = 2x - 3 ← equation of line

4 0
3 years ago
Is it <br> a.x = _<br> b. the solution is all real numbers <br> c. there is no solution
Zielflug [23.3K]

The solution to the given algebraic equation 1000(7x - 10) = 50(292 + 100x) is; x = 12.3

<h3>How to simplify algebraic equations?</h3>

We want to simplify the algebraic equation;

1000(7x - 10) = 50(292 + 100x)

The first step is to use distributive property of equality to expand the bracket to get;

7000x - 10000 = 14600 + 5000x

7000x - 5000x = 14600 + 10000

2000x = 24600

Use division property of equality to divide both sides by 2000 to get;

x = 24600/2000

x = 12.3

Thus, we can conclude that the solution to the given algebraic equation 1000(7x - 10) = 50(292 + 100x) is; x = 12.3

Read more about algebraic equations at; brainly.com/question/723406

#SPJ1

7 0
1 year ago
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