[rockydonnatelli]

1. A stack of 500 sheets of paper measuring 28cm x 21cm is 44.5 mm high and has a mass of 2090 g. What is the density of the paper in grams per cubic centimeters?


2. A triangular -shaped piece of a metal has a mass of 6.58 g. The triangle is 0.560 mm thick and measures 36.4mm on the base and 30.1 mm in height. WHat is the density of the metal in grams per cubic centimeters?

3. A packing crate measure .40mx.40mx.25m. You must fill the crate iwth boxes of cookies that each measure 22.2 cmx12.0 cmx5.0 cm. How many boxes of cookies can fit into the crate?

please help me...i am freakin stuck..and i dont have anyone else to help me.

[DaAzNkIgGa627]

1. Density = mass/volume

so 2090 g/28cm * 21cm * .445cm (remember to convert mm to cm)

2090 g/261.66 cm (cubed)

So like 7.98 g/cm(cubed)... I don't know what you need to round to

2. Density = mass/volume

6.58 g/.0056 cm* .364 cm * .301 cm

6.58 g/.0006135584 cm (cubed)

So roughly 10724 g/1 cm (cubed)

3. 40 cm * 40 cm * 25cm = 40,000 (40 thousand cm cubed)

22.2cm * 12.0cm * 5cm = 1,332 cm cubed

40,000 cm cubed /1,332 cm cubed = 30 boxes (full boxes)

30 boxes

Hope that helps ^.^