I got this from the free Manhattan flashcards, the EIV set.
I don't really get the explanation. If someone could clarify what they mean I would really appreciate it!
Question:
If c < 4, what is the range of possible
values of d for the equation
3c = −6d?
Answer:
Answer: d > -2
We can actually replace c with its extreme value, which is "less
than 4." The equation will read 3(less than 4) = −6d. So (less
than 12) = −6d. Divide by −6, and remember to flip the sign,
because we're dividing by a negative. Thus we have (greater
than −2) = d.
Although I am not a quant master, I am not exactly a slouch either. This explanation makes no sense to me, specifically the parenthesized items. "The equation will read 3(less than 4) = -6d...." how exactly does this look in a formula?
From their explanation I am seeing:
3 > 4 = -6d
>12 = -6d
<2 = d
This is nonsensical to me... Any takers?
I don't really get the explanation. If someone could clarify what they mean I would really appreciate it!
Question:
If c < 4, what is the range of possible
values of d for the equation
3c = −6d?
Answer:
Answer: d > -2
We can actually replace c with its extreme value, which is "less
than 4." The equation will read 3(less than 4) = −6d. So (less
than 12) = −6d. Divide by −6, and remember to flip the sign,
because we're dividing by a negative. Thus we have (greater
than −2) = d.
Although I am not a quant master, I am not exactly a slouch either. This explanation makes no sense to me, specifically the parenthesized items. "The equation will read 3(less than 4) = -6d...." how exactly does this look in a formula?
From their explanation I am seeing:
3 > 4 = -6d
>12 = -6d
<2 = d
This is nonsensical to me... Any takers?
