![lamontcarter](/avatars/17046.jpg)
lamontcarter
18.11.2020 •
Mathematics
2
Corey and Frank drove at constant speeds. Corey drove twice as fast as Frank.
a
time
miles
Which line represents Frank?
Which line represents Corey? Line a
Line b
Solved
Show answers
More tips
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
Answers on questions: Mathematics
- M Mathematics Alocal company manufactures netbook computers. their profit function is given by this equation: y equal minus x to the power of 2 plus 100 x plus 4000 where x is...
- M Mathematics Ineed . i don t know how to solve the problem at all....
- M Mathematics I need help on this question ASAP PLSSSSSSSSSSSSSSS...
- M Mathematics Who can get this if you can ill give you an brain thingy and i do need on this...
- M Mathematics If x + 7 = 9, then x ≠ 8. if we were to use an indirect proof to prove this statement, then what would we assume true? a. x = 8 b. x + 7 ≠ 9 c. x ≠ 8...
Ответ:
In your case, we will only do the first method because the second equation has only one unknown, x. We isolate it :
You replace in the other equation x by its new value, which yields
You just have to isolate y :
If the +47 in the second equation was meant to be +4y... well... It is a different story. Use the first method I described (substitution). It is similar to what I detailed.