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patriot [66]
4 years ago
14

When a number is added to its double and its triple, the sum is 714. Find the number.

Mathematics
2 answers:
Vlada [557]4 years ago
7 0

Answer:

The three numbers are 119, 238 and 357

Step-by-step explanation:

Let's call "a number":

n

It's double is then:

2

n

And, it's triple is:

3

n

The sum of these three numbers is 714 so we can write:

n

+

2

n

+

3

n

=

714

We can solve as follows:

n

+

2

n

+

3

n

=

714

1

n

+

2

n

+

3

n

=

714

(

1

+

2

+

3

)

n

=

714

6

n

=

714

6

n

6

=

714

6

6

n

6

=

119

n

=

119

It's double is

2

n

=

2

⋅

119

=

238

It's triple is

3

n

=

3

⋅

19

=

357

The three numbers are 119, 238 and 357

saveliy_v [14]4 years ago
6 0

Answer: 119 is your answer.

Step-by-step explanation: If you double it, it becomes 238. If you triple 238, you will get 714.

119 * 2 = 238

238 * 3 = 714

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valina [46]

Answer:

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Step-by-step explanation:

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3 years ago
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Solve for x.<br><br>7(x + 2) = 6(x + 5)
Helen [10]

Let's solve your equation step-by-step.

7(x+2)=6(x+5)

Step 1: Simplify both sides of the equation.

7(x+2)=6(x+5)

(7)(x)+(7)(2)=(6)(x)+(6)(5)(Distribute)

7x+14=6x+30

Step 2: Subtract 6x from both sides.

7x+14−6x=6x+30−6x

x+14=30

Step 3: Subtract 14 from both sides.

x+14−14=30−14

x=16

Answer:

x=16

4 0
3 years ago
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amid [387]

Answer:

B

Step-by-step explanation:

If you were to plot the number

9 would be on the  right of -6

therefore b is your answer

6 0
3 years ago
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Isabel is thinking of an even number between 234 and 250 . The sum of the digits is double the digit in the ones place. What is
Dvinal [7]
Since the required number is between 234 and 250, then the first digit of the number is 2 and the second digit can either be 3 or 4.

Let the second and the third digits be x and y respectively, then

2 + x + y = 2y

Consider when the second digit is 3, then

2 + 3 + y = 2y
5 = y

Thus, the number is 235.

Similarly, consider when the second digit is 4, then

2 + 4 + y = 2y
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Thus, the number is 246.

Since the required number is an even number, therefore, Isabel's number is 246.
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3 years ago
7/28 in simplest form
vampirchik [111]
\frac { 7 }{ 28 }

28 is 4 times 7, so we will rewrite it like that.

28=4\cdot 7\\ \\ \frac { 7 }{ 28 } =\frac { 7 }{ 4\cdot 7 }

7 is 7 times 7, so we will rewrite it like that.

\frac { 7 }{ 28 } =\frac { 7 }{ 4\cdot 7 } =\frac { 1\cdot 7 }{ 4\cdot 7 } =\frac { 1 }{ 4 } \cdot \frac { 7 }{ 7 } =\frac { 1 }{ 4 } \cdot 1=\frac { 1 }{ 4 }

So the simplest form is,

\boxed { \frac { 1 }{ 4 }  }
8 0
4 years ago
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