anonymous
  • anonymous
Will medal and fan! Mr. and Mrs. Miller both get in their cars and begin to drive at the same time. Mr. Miller is 280 mi from their house and drives directly home at a constant rate of 40 mph. Mrs. Miller is at their house and drives away from the house at a constant rate of 30 mph. Let d represent distance from home, and let t represent time in hours. Which system models this situation? A. d = 280 + 40t d = 30t B. d = 280 − 30t d = 40t C. d = 280 − 40t d = 30t D. d = 280 − 40t d = 280 + 30t
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
nuttyliaczar
  • nuttyliaczar
First off which answers are automatically wrong because of the second equation
anonymous
  • anonymous
Would it be D that's wrong? Sorry, I'm really not great with equations like this. haha!
nuttyliaczar
  • nuttyliaczar
It's all logical, don't assume you aren't good at it because everyone is capable. Why is the last one wrong?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Because it's irrelevant to Mrs. Miller's equation. Mr. Miller is the one 280 away and he's driving at 40 mph.
anonymous
  • anonymous
Not 30 mph. Am I on the right track? haha...
nuttyliaczar
  • nuttyliaczar
Yes since D represents distance from house and t represents time elapsed, Mrs. Miller can't have that bottom equation. She starts at the house which is d=0 at t=0. The other three choices can potentially do that for us. So which equation accurately shows her speed and gets Mr. Miller's speed towards the house right?
anonymous
  • anonymous
Yay I was right! :D I personally feel like C. is correct.
nuttyliaczar
  • nuttyliaczar
Why is C correct?
anonymous
  • anonymous
Because the top equation for Mr. Miller is representing him driving 40 mph subtracted by his distance. The bottom equation represents Mrs. Miller progress, however, the problem only tells us she drives away from home at 30 mph, not how many miles she's driving.
nuttyliaczar
  • nuttyliaczar
It has nothing to do with how far they are trying to drive. Mr is reducing distance by 40mph and starts at 28p while Mrs starts at 0 and increases distance by 30mph. So yes you're right
nuttyliaczar
  • nuttyliaczar
280*
anonymous
  • anonymous
Oh, I see! Okay, well thank you so much for your help, I really appreciate it. :)
nuttyliaczar
  • nuttyliaczar
Yep no problem

Looking for something else?

Not the answer you are looking for? Search for more explanations.