Tom has saved $128, and his goal is to save $500. How much more must he save?
Which equation BEST represents this situation?
Responses
A x + 128 = 500x + 128 = 500
B x - 128 = 500x - 128 = 500
C x + 500 = 128x + 500 = 128
D x - 500 = 128
The correct equation that represents this situation is A) x + 128 = 500.
To find out how much more Tom must save, we need to subtract the amount he has saved (which is $128) from his goal savings (which is $500).
So, the equation that represents this situation is:
B) x - 128 = 500
Where x represents the amount Tom needs to save (in dollars).
To determine how much more Tom must save to reach his goal of $500, we need to subtract the amount he has already saved from the goal amount.
So, the equation that represents this situation is:
Goal amount - Amount already saved = Amount Tom must save
or
$500 - $128 = Amount Tom must save
Simplifying this equation gives us:
$372 = Amount Tom must save
Therefore, the correct equation is D: x - 500 = 128