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Mr. Jensen made 135 copies of an exam for his three classes. If he made 25 fewer copies for his first class than he did for his second and third classes combined, how many copies did he make for his first class?

ANSWER CHOICES:
A) 55
B) 85
C) 95
D) 110

Respuesta :

DeanR

Let x be the number for the first class, y for the second plus third.

x + y = 135

y - x = 25

Subtracting,

2x = 110

x = 55

Answer: A


Tundexi

A number of 55 copies was made by Mr Jensen for his first class.

How do we find the copies made for his first class?

Let x be the number for the first class while y be the second and third class.

x + y = 135....equ i

y - x = 25.......equ ii

Now, we use the elimination method to solve both equation.

2x = 110

x = 55

Therefore, the Option A is correct.

Read more about elimination method

brainly.com/question/489689

#SPJ6

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