When the weight of an object equals the weight of the water displaced (or pushed away) by the object, the object is neutrally buoyant and easy to lift to the surface.

A tanker made of 2.5\times10^3\text{ m}^32.5×103 m32, point, 5, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript of steel sank to the bottom of the ocean. The density of steel is approximately 8\times10^3\text{ kg/m}^38×103 kg/m38, times, 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. The density of seawater is approximately 1\times10^3\text{ kg/m}^31×103 kg/m31, times, 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. Because gravity is pretty much the same everywhere on earth, the weight of the tanker can be assumed to be approximately equal to its mass.

In kilograms, what total weight of seawater needs to be displaced in order to lift the tanker to the surface?

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have