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sergeinik [125]
3 years ago
7

Three times a number increased by ten is equal to twenty less than six times the number. Find the number

Mathematics
1 answer:
AysviL [449]3 years ago
4 0

Let the number be x. "Three times a number increased by 10" is mathematically translated as

3x + 10

"is equal" is mathematically translated as twenty less than six times the number" is mathematically translated as

6x - 20

The whole sentence "Three times a number increased by ten is equal to twenty less than six times the number" is translated as

3x + 10 = 6x - 20

We now solve the above linear equation to find the number x

3x - 6x = - 20 - 10

- 3x = - 30

x = 10

Check answer

Three times a number increased by ten : 3 × 10 + 10 = 40

Twenty less than six times the number : 6 × 10 - 20 = 40

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18 2/5 - n = -10 1/3
Wewaii [24]

Answer:

The answer is n=28\frac{11}{15}.

Step-by-step explanation:

Given:

18 2/5 - n = -10 1/3.

Now, to solve the equation:

18\frac{2}{5} - n = -10 \frac{1}{3}

Converting the mixed fractions to improper:

⇒\frac{92}{5} -n=-\frac{31}{3}

Moving the numbers on one side and variable to the other:

⇒\frac{92}{5} +\frac{31}{3}=n

Now, solving the factions:

⇒\frac{92\times 3+31\times 5}{15}=n

⇒\frac{276+155}{15}=n

⇒\frac{431}{15}=n

⇒28\frac{11}{15}=n

Therefore, the answer is n=28\frac{11}{15}.

3 0
3 years ago
dear brainly, I hope you see this, Please be aware of when you go and delete a persons account and or questions and answers. Be
Scrat [10]

Answer:

So true bro

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the probability of rolling a 5 on a dice?<br><br> Provide answer as REDUCED FRACTION!
melisa1 [442]

Answer:

i mean, if its a 6 sided dice, then 1/6

Step-by-step explanation:

8 0
2 years ago
Bryan is asked to write an inequality to represent the graph.
Fittoniya [83]

The error that Bryan has done in this inequality is that he included –14 in his solution set.

<h3>How to point out the mistake made</h3>

What Bryan has to do would be to write this inequality in such a way that the variable would appear on the left.

But the symbol that he has chosen does not move in this same direction as the graph.

The -14 should not be inclusive in the graph because it is not a part of the graph solution.

He used the wrong number in this inequality.

Read more on inequalities here:

brainly.com/question/24372553

#SPJ1

7 0
2 years ago
What is the slope of the line in the following graph?<br> 1/3<br> 1/2<br> 2<br> 3
ivanzaharov [21]
For every 3 you go across you go up 1 so the gradient is rise/run = 1/3

Therefore gradient is 1/3
5 0
3 years ago
Read 2 more answers
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