A zoologist is recording the loss of deer in a forest. She notes the number of deer, d, in the forest on January 1. One year later, there were 73 deer in the forest, which is 19 fewer deer than were in the forest a year earlier.

Which equation represents this situation?

A.

d + 19 = 73

B.

d – 73 = –19

C.

73 – d = 19

D.

d – 19 = 73

Question

A zoologist is recording the loss of deer in a forest. She notes the number of deer, d, in the forest on January 1. One year later, there were 73 deer in the forest, which is 19 fewer deer than were in the forest a year earlier. 

 

Which equation represents this situation?
	
	
 
A.
	

d + 19 = 73
	
 
B.
	

d – 73 = –19
	
 
C.
	

73 – d = 19
	
 
D.
	

d – 19 = 73

anonymous · Answer

I there were d number of deer, and 19 were missing a year later, this can be translated to d - 19. Once 19 was taken away from d, we know that there were 73 deer. This can translate to d - 19 = 73