SOLUTION: A restangular tank 50 cm long, 30 cm wide and 20 cm deep contains 15 litres of watr. 48 metal cubes of edge 5 cm are completely immersed in the water. Calculate the new height of w

Algebra ->  Finance -> SOLUTION: A restangular tank 50 cm long, 30 cm wide and 20 cm deep contains 15 litres of watr. 48 metal cubes of edge 5 cm are completely immersed in the water. Calculate the new height of w      Log On


   

Question 960727: A restangular tank 50 cm long, 30 cm wide and 20 cm deep contains 15 litres of watr. 48 metal cubes of edge 5 cm are completely immersed in the water. Calculate the new height of water level in the tank.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Use the conversion:
+1+ litre = +1000+ cm3
+15+ litres = +15000+ cm3
-----------------
+48+ cubes with edge +5+ cm
have volume:
+48%2A5%5E3+=+6000+ cm3
-------------------------
+15000+%2B+6000+=+21000+ cm3
Only the depth can be varied, so
+50%2A30%2Ax+=+21000+
+x+=+21000+%2F+1500+
+x+=+14+
The height of the water in the tank is 14 cm