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GalinKa [24]
3 years ago
10

12. Algebra There are 92 students in the third and fourth grades at Johnsonville Elementary. Of these, 47 are in fourth grade. W

rite an equation to find how many third graders there are. Use a question mark to represent the unknown number and solve.
Mathematics
2 answers:
Fudgin [204]3 years ago
4 0

x + 47 = 92.   <--- x represents the number of 3rd graders

x +47-47 = 92-47

x=45

There are 45 third grader. Hope this helped!

ICE Princess25 [194]3 years ago
3 0

Answer:

?+47=92

The number of students in third grade 45

Step-by-step explanation:

Given : There are 92 students in the third and fourth grades at Johnsonville Elementary.

Of these, 47 are in fourth grade.

To Find : Write an equation to find how many third graders there are. Use a question mark to represent the unknown number and solve.

Solution:

Number of students in fourth grade = 47

Let ? be the number of students in third grade

So, total number of students = ?+47

We are given that There are 92 students in the third and fourth grades

So, ?+47=92

?=92-47

?=45

Hence  an equation to find how many third graders there are is  ?+47=92 and the number of students in third grade is 45.

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