Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

plz help no one is .. question below

OpenStudy (anonymous):

A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 60 dumpster loads of waste removed. In week 10, there were 40 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week. f(x) = - 4x + 60 f(x) = 4x + 60 f(x) = - 4x + 80 f(x) = 4x + 80

OpenStudy (anonymous):

@mathstudent55 plz help

OpenStudy (anonymous):

@sleepyjess help :(

OpenStudy (sleepyjess):

Just substitute in the numbers and see which one works out. x = 5, y = 60 x = 10 y = 40

OpenStudy (anonymous):

i still don't get it

OpenStudy (anonymous):

i got choice a the first time i did it

OpenStudy (sleepyjess):

Substitute in 5 for x in the first equation. y = -4(5) + 60 y = -20 + 60 y = 40 Welp, week 5 is supposed to be 60, so the first option isn't right.

OpenStudy (anonymous):

oh i see give me a sec

OpenStudy (anonymous):

so it's C?

OpenStudy (sleepyjess):

Yep, that works with both values of x y = -4x + 80 y = -4(5) + 80 y = -20 + 80 y = 60 That works y = -4x + 80 y = -4(10) + 80 y = -40 + 80 y = 40 That works too

OpenStudy (anonymous):

OK thnz

OpenStudy (sleepyjess):

np

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Countless7Echos: Ah trying out the whole T.V girl drawing :p (I love drawing eyes)
2 hours ago 7 Replies 5 Medals
kaelynw: starting to draw a hand
1 day ago 16 Replies 2 Medals
Twaylor: Rate it :D (Took 2 days)
2 days ago 7 Replies 0 Medals
XShawtyX: Art, Short Writing Assignment: Imagining Landscapes
3 hours ago 7 Replies 1 Medal
XShawtyX: Chemistry, Help ud83dude4fud83cudffe
3 days ago 13 Replies 1 Medal
kaelynw: tried a lil smt, the arm is off but i like the other stuff
3 days ago 27 Replies 3 Medals
kaelynw: art igg
3 days ago 14 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!