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The density of a block that measures 2 in by 4 in by 5 in is 5 kg/m?. What is the mass of the block?

Give me your explanation please thank you.

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Density of an object = its mass / its volume --> Mass = density x volume
Since you have the density in (Kg / m^3), then the mass will be in Kg and the volume should be in (m^3).
Convert the measures of the object from inch to meter, multiply them by each others to find the volume and then multiply the result to the density to find the mass.

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Alright, first I'm gonna start by stating the formula for mass. It is m=d*v. Okay, now we are going to see that density, or d, is already given. Second, how to find volume? It is length*width*height and that is also given. So just plug it in. m=5kg/m*(5*4*2). After calculating that, it is m=200kg/m

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how about the inches? and by the way that is a m?.
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that is a cubic meter.
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Oh yeah...the inches. Okay well I would guess since the density says kg/m and m is meters. Convert the inches to meters. Then solve it.
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The conversion is 1 inch = 0.0254m
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So instead it's m=5kg/m*1.016m. That ends up as 5.08kg/m
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I got 1.016 by multiplying 40 and .0254 together.
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kg/m the m there is the cubic meter .
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