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.
287/4 should get you randys starting point
i set it up as 287=3.5S + 3.5R R=S+4 (R being randys speed, S being sandys speed)
speed randy (time) + speed sandy (time) = 287
and i got 39 for S but thats not one of my options
idk what i did wrong
287 = (s+4)(3.5) + 3.5s 287 = 3.5s +3.5s + 14 287-14 = 7s 273 = 7s 273/7 = s 39 = s
maybe its a bad model :)
randy would be going 43 and sandy 39 right?
thats what i figured
maybe it changes if they are starting from the same spot
my options are 51 56 61 66 71
randy - Sally = 287
(3.5s + 14) - (3.5s) = 287 ?
its 39! :(
actually i got 0 when i did it again
lol try randy-287 = sally
GAHHHH my teacher sucks
distance = speed (time) right?
yes btw the last question you helped me with..the pools..i was looking at the wrong answer options..it wasnt 61
ohhhh...was that the one with 7.1 radius
yes im just gonna yell at my teacher and tell him he gave me a faulty question
I get: Dr = Ds + 287 but dunno if its gonna work :)
(s+4)(3.5) = s(3.5) + 287
if they start at different points and travel towards each other, but thats not in the question
right they are from the same point and driving away from each other
away from each other?
thenDr + Ds = 287 if thats the case 7s +14 = 287 7(s+2) = 287 i still get 39
this class is ridiculous these are like impossible problems and i still have a whole other set of problems to start
if sally is not moving, does that change the dynamics of our problem?
yeah cuz then she would have no speed
and therefore would have no distance
think of it like this maybe....in one hour, randy if 4 miles farther.....
randy, at the end of 3.5 hours is 14 miles farther than sally
that wouldnt change the equation for sally's speed though..
they have traveled a distance of 273 miles if they were traveling the same speed right?
no because when we substitute R in for S+4 they arent
and the question says they are travleing different speeds
randy is 14 miles further than sally at 3.5 hours right?
so 287 - 14 = the distance traveled by Sally in 3.5 hours right? 273 in 3.5 hours?
speed equals distance/time
that gives me 78 mph..... but its closer :)
hahah and still not an option
I am giving up for tonight, thank you for all your help