For T=0 to T=10, D = T*3*6
<span>for T>10 to T=20, D = 30*6 + (T-30)*3*5.5 </span>
Answer:
c 89+42x+42y
Step-by-step explanation:
On day 1 :
First Machine= 89 stickers
Second Machine= none
On day 2 :
First Machine= ? stickers ( if in 1min = 42stickers
x min=?
( x min/1 min × 42stickers)
=42x stickers.
Second Machine=?stickers ( if in 1min = 42stickers
y min=?
( y min/1 min × 42stickers)
=42y stickers.
Total = 89 + 42x + 42y
180 - 85 = 95
Yep, you are all good!
Answer:
it's the first I think but at least I tried