Question

Hi, I always have a hard time with these, the whole question is in the picture.

Answer 1

we have that

x1 ----> number of cars with a 7,000 gal capacity

x2 ---> number of cats with a 14,000 gal capacity

x3 ---> number of cars with a 28,000 gal capacity

so

7000x1+14000x2+28000x3=462000

using a 3x3 system of equations solver

the solution is

x1=-2s-4t+66

x2=s

x3=t

The answer is option B