How can you determine the best method of solving a system of equations?
Elimination is best used when both equations are in standard form (Ax + By = C).
Elimination is also the best method to use if all of the variables have a coefficient other than 1.
Hope this helps
Answer:
3(9+r)
Step-by-step explanation:
pretty sure that should be it if not then mb
<u><em>Answer: 333x and x=333. *The answer must be have positive sign.*</em></u>
Step-by-step explanation:
distributive property: a(b+c)=ab+ac
add numbers.
30+7=37
9*37x
multiply numbers.
9*37=333
<em><u>=333x and x=333</u></em>
Hope this helps!
Thanks!
Have a great day!
Hi , the answer is -1 , because -1 is the number that is closest to zero.
B and c are the speeds of the boat (in still water) and the current.
Traveling with the current, the boat goes b+c km per hour.
1 hour * (b+c km)/hour = 15 km
b+c = 15
Traveling against the current, the boat goes b-c km per hour.
3 hours * (b-c km)/hour = 15
b-c = 5
Add the two equations
b = 10 km per hour
