Answer:
6 hours
Step-by-step explanation:
well we have 15000 gallons, divided by 2500 since its gallons per hour. we have 6 hours
have a good day
Answer:

Step-by-step explanation:
Given that in a group of 40 people, 35% have never been abroad. Two people are selected at random without replacement and are asked about their past travel experience.
Since the two are drawn without replacement the first trial affects the second trial. In other words, each trial is not independent of the other.
a) Hence this cannot be binomial experiment. The reason is p=probability for each trial is not constant as first draw affect the probability for Ii draw
b) The probability that in a random sample of 2, no one has been abroad
=Prob of selecting both people from the group where no one has been abroad
We have in the group 35% i.e. 14 people never been to abroad
So required probability = Prob of selecting both from 14 people
=
Answer:
15. -42 16.13
Step-by-step explanation:
For positive numbers Absolute change (actual difference) = Percentage increase and For positive numbers Absolute change (actual difference) =
- 1 × Percentage decrease
Answer:
a=4
Step-by-step explanation:
<u>Question: 4-8a=4(5-3a)</u>
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1) Distribute 4 to 5 and -3a:
4-8a=20-12a
2) Add 12a to both sides:
4+4a=20
3) Subtract 4 from both sides:
4a=16
4) Divide both sides by 4:
a=4
Footnotes:
- The <em>Distributive</em> property says a(b+c)=ab+ac