Question

A king-size waterbed mattress measures 5.5 feet by 6.5 feet by 8 inches deep. To the nearest pound, how much does the water in this waterbed weigh?

Answer 1

also the answer is volume

Answer 2

So you just want to find the volume of the mattress?

Answer 3

yep

Answer 4

To find the volume just multiply all the numbers together

Answer 5

5.5 * 6.5 * 8

Answer 6

= 286

Answer 7

But the 5.5 and 6.5 are in feet....

Answer 8

but it also about 63lb

Answer 9

So wouldn't you need to transfer the feet to inches?

Answer 10

it up to you

Answer 11

yeah sorry

Answer 12

You can't find the weight. Weight is in units of gm/s^2
while all you are given is 1/ m^3

Answer 13

You need to turn the 8 into ft and then multiply

8/12 = 2/3

so 5.5 x 6.5 x 2/3

Answer 14

so i got 23.83333333