Hey there! I’m happy to help!
Let’s first subtract 4 from 20 to see how much was lost.
20-4=16
Now, we see that 16 is a certain percent of twenty that we want to find. When talking about percents, the word “is” represents an equal sign. So, we can write this equation. We will have p represent our prevent.
16=20p (16 is a certain percent of 20)
Now, we solve by dividing both sides of the equation by 20 to isolate the p.
p=0.8
0.8 is 80% or 4/5, so 4/5 of the dam water has been lost.
Have a wonderful day! :D
Answer:
10 yards
Step-by-step explanation:
6+4=10
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
n = 240
mean = 22.3 hours
standard deviation = 6 hours
At 99% level of confidence, z = 2.58
So, interval would be
Hence, Option 'c' is correct.
Answer: domain = 12 students
Range = $60
Step-by-step explanation:
Given that the total dollar amount earned, E. Is a function of the number of members who perform communityservice, n
That is
E(n) = 5n
Since the club earn $5 on each student who does community service,
Domain is independent variable n
While range is dependent variable E
Domain is therefore = 12 students
Range = 12 × 5 = $60
