Question

25 Points! Please Help Me With This. Click On The Photo And Can You Please Help Me Answer #4 I Do Not Get What It Means. If You Can Also Show Your Work Thanks!

Answer 1

So both equations are true

Explanation:

#4 was asking you to substitute x = 4 into both equations to see if it's the solution of the equations.

Substitute x = 4

Ritz equation

y = 30x + 20

y = 30(4) + 20

y = 120 + 20

y = 140

Smits equation:

y = 15x + 80

y = 15(4) + 80

y = 60 + 80

y = 140

Both companies charged same price $140 for 4 days

So both equations are true

Answer 2

Explanation:

It is a bit ambiguous. I'm assuming that what they want you to do is to substitute

y = 140

x = 4

Into the two equations that went into making the answer of 4 come up

y = 30x + 20

y = 30*4 + 20

y = 120 + 20

y = 140 which is in agreement with your answer

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y = 15x + 80

y = 15*4 + 80

y = 60 + 80

y = 140

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Conclusion

both equations give the same answer. Both equations are correct.