Question

A problem states: "There are 7 more girls than boys in a class. There are 23 students in the class in all. How many girls are there in the class?"

What are the unknowns in this problem?
Multipule Choice
A.

the number of students in the class
B.the number of boys in the class
C.the number of girls in the class
D.the number of teachers in the class

This Is A Question For Whoever Needs Points.

Answer 1

the numbers of boys in class

Answer 2

number of girls = 7 + 8 = 15

The uknown in the class are the number of boys

Explanation:

number of students = 23

let number of boys = y

number of girls = 7 + y

number of girls can be computed as

number of girls = students - y

number of girls = 23 - y

7 + y = 23 -y

-16 = - 2y

y = 8

number of boys = 8

number of girls = 7 + 8 = 15

The number of teacher is the unknown