Answer:
25 < t < 350
Step-by-step explanation:
The mean lifetime of a bulb ranges from 25 to 350 hrs but the question is unclear.
Answer:
1/6
Step-by-step explanation:
-4/9 * (-3/8) =
= 12/72
= 1/6
2/3 box per 1/2 minute => 2(2/3) box per 2(1/2) minute
Thus it is 4/3 box per minute
Answer:
Step-by-step explanation: ok so they sold 9 book marks for every 2 books right?
so you would put 72 over nine like a fraction, then you would put 2 over X like another fraction.
Then cross multiply. 72*x=72x
9*2=18
72 divided by 18 = 40
I hope this helps