Answer:
16-17 min
Step-by-step explanation:
5/6 hour = 50 minutes
50 divided by 3 is approx. 16-17
Takes about 16-17 minutes to do 1 task
Answer:
Step-by-step explanation:
Confidence interval is one which has centre as mean. The width of the interval would be 2 times margin of error.
Margin of error = Critical value * Std error/sq rt of sample
Hence if margin of error is lower for same n, then it means lower confidence level. Option a is right
Similarly, if bigger the sample size, lower is margin of error . Hence option b is right
c) False. Smaller samples make margin of error big and hence confidence intervals bigger.
d) If n becomes 9n, then margin of error becomes 1/3 Hence option d is right.
(<em>q = quarters, n = nickles</em>)
<u>First, create your system of equations:</u>
25q + 5n = 535 cents
n = 2q - 5
<u>Second, Substitute for n:</u>
25q + 5(2q - 5) = 535
<u>Simplify:</u>
25q + 10q - 25 = 535
<u>Simplify to solve for q:</u>
35q=560
q=16
<u>Next, solve for n by plugging the value of q back into the equation:</u>
n=2q - 5
n=32-5
n=27
There would be 16 quarters and 27 nickles.
<em>Hoped this helped!</em>
Answer:
Step-by-step explanation:
<u>Given equation:</u>
<u>Given variables:</u>
<u>Simplify, then solve:</u>
- x=2y-7
- = x = (2 * 5) - 7
- = x = 10 - 7
- = 3
- x = 3.
Answer:
Khadija's my grandmas name
Anyways
Step-by-step explanation: