Question

I need some help

Ted is looking for a plot of land. He wants the length, l, to be twice the width, and he wants at least 800,000 square yards. If w represents the width, which of the following represents this situation?

800,000 < w^2
400,000 < w^2
800,000 < 2lw
400,000 < lw^2

Answer 1

It tells you he wants the l to be twice the width.

Answer 2

so A and C are eliminated

Answer 3

Well think of it.. In the problem, it says 800,000 so right away, you should cancel out the ones that aren't that number.

Answer 4

oh so B and D

Answer 5

leaves me with A and C

Answer 6

twice of I and W my answer is A

Answer 7

Yes! Now when it says "twice" of something, that means it's going to be multiplied by 2, and since in this case its l is twice the width...the equation needs to have 2l.

Which one has that?

Answer 8

i believe that the answer is B is makes since to multiply that twice to get 800,000

Answer 9

The area of the plot of land is length times width.

If the length is twice the width, then l = 2w and the area is 2w^2.

Since he wants at least 800,000 square yards, the inequality is as follows.

800,000 < 2w^2
400,000 < w^2

Answer 10

Hm, but that's 400,000 and he wants AT LEAST, meaning nothing less then, 800,000. So right there, B and D are canceled out.

Answer 11

i took a chance and chose B

Answer 12

Well to me, the correct one was C, considering it has everything the word problem tells you..

Answer 13

you were right when it came to twice as much thats what i missed in the problem so times that it wouldve been B

Answer 14

But its "at least" 800,000 meaning it cant be anything lower then that.. that alone, helps you cancel out.

Answer 15

@CausticSyndicalist

Answer 16

@One098
@Starr_DynastyT

Answer 17

Says the answer is B