kr891598
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There are a total of 420 students at South School. This is 3 times the number of students in the sixth grade. How many students, n, are there in the sixth grade?

Respuesta :

iciclepiano18

Answer:

140 students

Step-by-step explanation:

Let n be the amount of students in 6th grade then:

3n=420

Divide both sides by 3

n=420/3

n=140

There are 140 students in the 6th grade.

Solution:

Given:

  • Total students: 420
  • Given clue: 420 is 3 times the number of students in the sixth grade.

Let's reread the clue carefully.

{420} {is} {3 times the number of students in the sixth grade.}

   ↥      ↥                                          ↥

420    =                                      3 x n

This means that the equation formed is 420 = 3n. Let's solve for n.

Solving for n.

  • 420 = 3n
  • => 420/3 = 3n/3
  • => 140 = n

140 students are in 6th grade.

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