I don't remember what is a extraneous solution, but i hope it helps
We can solve this by setting up a proportion where 864/12 = 504/x. We cross multiply and get 864x = 504 * 12. So 864x = 6048. Divide by 864 on both sides, x = 7.
It would take Charlie 7 hours to drive 504 miles.
Answer:
144+27y
Step-by-step explanation:
3x3(4x4+3y)
9(16+3y)
144+27y
Answer:
x has to be less than 3
Step-by-step explanation:
Answer:
2(x+10) = 3x-30 (reason: vertical angles are congruent)
2x+20 = 3x-30
20 = 1x-30
1x = 20+30
1x = 50
x = 50
