coaches take people to festival each coach can take 50 people there are 820 people how many coaches how many coaches are needed

16.4

Step-by-step explanation:

so , since this question stated there ARE coaches but does NOT say how many exactly , that's what you have to find out , so each coach can take 50 people each and there are 820 in total so you have to divide 820 by 5 and you get 16.4 . that means there must be 16.4 coaches to go but you cant split the coach into a 4th you have to round down (because the decimal is lower than 5 ) so then you'll get 16 coaches as your final answer

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.