A railway car is in the shape of a rectangular prism. The railway car is 3 m wide, 20 m long and has a height of 2.8 m. determine then volume of the railway car in cubic cm.
okay there is 100 cm in 1 m so 3 x 100= 300, 20 x 100 =2000, 2.8 x 100= 280. I multiplied all of them and I got 168000000 cubic centimeters. Is this right? if wrong I'm I suppose to add all of them instead of multiplying all of them? Thank you
2007-10-08 12:28:08 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
That is correct. Multiply them.
2007-10-08 12:33:19 · answer #1 · answered by Dr D 7 · 0⤊ 0⤋
Looks good to me. Easier way to do this is to multiply the dimensions in meters, and multiply the result by a million to get cubic centimeters.
2007-10-08 19:33:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
What you did is fine an got you the correct answer. You could just say V = 3*20*2.8 = 16b m^3
Then say there are 10^6 cm^/m6# and get 168 *10^3 as the same answer.
2007-10-08 19:36:19 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
Yeah, you're right, the volume of a rectangular prism is length*width*height, you're not supposed to add anything, who told you that?
2007-10-08 19:36:59 · answer #4 · answered by ωĨŞΣ Ĝųγ 4 · 0⤊ 0⤋
You are absolutely correct.
300cm (W) * 2000cm (L) * 280cm (H) = Volume
2007-10-08 19:35:02 · answer #5 · answered by David F 5 · 0⤊ 0⤋