Reservoirs 29051

The three water reservoirs hold a total of 130 liters. Determine their volumes in m3. If the first fits 15 liters less than the second and 20 liters less than the third.

Correct answer:

a =  0.04 m3
b =  0.055 m3
c =  0.035 m3

Step-by-step explanation:

V1=130 l m3=130:1000  m3=0.13 m3  a+b+c=V1 a=b15/1000 c=b20/1000 a+b+c=0.13 a=b15/1000 c=b20/1000  a+b+c=0.13 1000a1000b=15 1000b1000c=20  Pivot:Row1Row2 1000a1000b=15 a+b+c=0.13 1000b1000c=20  Row210001 Row1Row2 1000a1000b=15 2b+c=0.145 1000b1000c=20  Pivot:Row2Row3 1000a1000b=15 1000b1000c=20 2b+c=0.145  Row310002 Row2Row3 1000a1000b=15 1000b1000c=20 3c=0.105  c=30.105=0.035 b=100020+1000c=100020+1000 0.035=0.055 a=100015+1000b=100015+1000 0.055=0.04  a=251=0.04 b=20011=0.055 c=2007=0.035



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a system of equations and looking for calculator system of linear equations?
Do you know the volume and unit volume, and want to convert volume units?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Grade of the word problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: