SOLUTION: a solid metal bar is in the shape of a cuboid of length of 250 cm the cross section is a square of side x cm ?the volume of the cuboid is 48.40 cm^3 a)show that x=4.4 ? b) the

Algebra ->  Rectangles -> SOLUTION: a solid metal bar is in the shape of a cuboid of length of 250 cm the cross section is a square of side x cm ?the volume of the cuboid is 48.40 cm^3 a)show that x=4.4 ? b) the      Log On


   

Question 1111021: a solid metal bar is in the shape of a cuboid of length of 250 cm
the cross section is a square of side x cm ?the volume of the cuboid is 48.40 cm^3
a)show that x=4.4 ?
b) the mass of 1 cm^3 of the metal is 8.8 grams calculate the mass of the whole metal bar in kilograms ?
c)A box in the shape of a cuboid measures 250cm by 88cm by hcm
120 of themetal bars fit exactly in the box ?
calculate the value of h ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
V=A%2AL
V=x%5E2%2AL
x%5E2=V%2FL
x=sqrt%28V%2FL%29
x=sqrt%2848.40%2F250%29
x=0.44cm
This value does not match the 4.4 cm value you provided.
Verify the values for length and volume, also check the units (cm, mm, m) for any discrepancies.
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m=rho%2AV
m=%288.8%2F1%29%2A48.40
Work that out for the mass in grams.
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Assuming 4.4 is correct, there are 88%2F4.4=20 bars long the 88 cm measurement.
Since there are 120 total bars, find the number of bars long on the h side,
N=120%2F20
N=6
Six bars along that side so the measurement on that side would be,
h=6%284.4%29
h=26.4cm