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Katarina [22]
3 years ago
15

The sum of one-third of a number and three-fourths of the number exceeds that number by one. Which equation could be used to fin

d the number? n = n + 1 n + n = n - 1 n + n = n + 1
Mathematics
2 answers:
Marrrta [24]3 years ago
8 0
\frac{n}{3} + \frac{3n}{4} = n+1 

4n + 9n = n+1
13n = n+1
13n-n = 1
12n = 1

mafiozo [28]3 years ago
6 0

Answer:

\frac{n}{3} + \frac{3n}{4} = n +1.

Number = 12.

Step-by-step explanation:

Given : The sum of one-third of a number and three-fourths of the number exceeds that number by one.

To find : Which equation could be used to find the number.

Solution : We have given a statement

Let a number  = n

According to question

One third of a number = \frac{n}{3}.

Three - fourths of the number  =  \frac{3n}{4}.

Sum of their is  exceeds that number by one.

\frac{n}{3} + \frac{3n}{4} = n +1.

Taking common denominator

\frac{4n+9n}{12} = n+1 .

\frac{13n}{12} = n+1.

On subtracting n both sides.

\frac{13n}{12} -n = 1

Taking common denominator

\frac{13n -12n}{12} = 1

\frac{n}{12} = 1

On multiplying by 12 both sides

n= 12.

Therefore, \frac{n}{3} + \frac{3n}{4} = n +1.

Number = 12.

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Help me PLEASE!!!!!<br><br> 3x = 27<br><br> x = ? <br><br> Thank you!!
steposvetlana [31]
We will use the INVERSE OPERATION of multiplication which is division. Lets do it:-

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CHECK OUR WORK:-

3x = 27
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3 · 9 = 27
We were RIGHT!!!!!

So, x = 27.

Hope I helped ya!!! xD
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