503,470 views
9 votes
9 votes
Write each sentence as an equation. Eight less than 1/3 a number is n -13.​

User Cleb
by
3.2k points

2 Answers

14 votes
14 votes

Answer:


\bold{(n)/(3) - 8 = - 13}

and the solution is

\bold{n = -15}

Explanation:

I believe this sentence is mistyped
It should be Eight less than 1/3 a number n is -13

Analyze the word problem piece by piece not necessarily from the beginning of the sentence

  • The number is given as n in the sentence part boldfaced below
    Eight less than 1/3 a number n is -13
  • Eight less than 1/3 a number n is -13
    We take the phrase "1/3 a number n" and translate that as

    \bold{(1)/(3)\cdot n = \bold{(n)/(3)}}

  • Eight less than 1/3 a number n is -13
    Eight less than
    (n)/(3)

    \bold{(n)/(3) - 8}
  • Finally we have the whole sentence
    Eight less than 1/3 a number is - 13:
    "is - 13" translates to
    \bold{= -13}

  • Putting the pieces together......
    "Eight less than 1/3 a number is n - 13" in equation form is

    \boxed{\bold{(n)/(3) - 8 = - 13}}

If you wanted to solve this equation for n here's how to proceed

  1. Add 8 to both sides to isolate the n term

    (n)/(3)-8+8=-13+8
  2. Simplify

    (n)/(3)=-5
  3. Multiply both sides by 3

    (3n)/(3)=3\left(-5\right)
  4. Simplify

    n=-15

    So the solution is
    \boxed{\text{n = - 15}}


User Robert Niestroj
by
3.1k points
12 votes
12 votes

Answer:

Step-by-step explanation: Given that eight less than one-third of a number n is -13.

We are to find the value of n.

According to the given information, the equation for n can be written and solved as follows :

Thus, the required value of n is -15. I hope this really helps you(:

User Michal Rus
by
2.7k points