Solution to Interval Notation
Lyn's speed is 3 miles per hour.
That is distance travelled in 60 minutes
= 3 miles
So, distance travelled in 25 minutes
= 3 * 25 / 60 miles
= 25/ 20 miles
= 1.25 miles
New speed of Lyn is 5 miles per hour
That is, for travelling 5 miles, time required = 60 minutes
So, for travelling 1.25 miles, time required = 60 * 1.25 / 5 minutes
= 60/ 4 minutes
= 15 minutes.
It will take her 15 minutes, if she runs at a speed of 5 mph.
Hope this helps ..!!
The <em><u>correct answer</u></em> is:
639.4 minutes.
Explanation:
Saturn takes 10 hours, 39 minutes and 24 seconds to make a complete rotation.
10 hours × 60 minutes per hour = 600 minutes.
600 minutes + 39 minutes = 639 minutes.
24 seconds out of 60 seconds per minute = 24/60 = 0.4.
This gives us 639+0.4 = 639.4 minutes.
Answer:
Step-by-step explanation:
We want to construct a 90% confidence interval for the mean content of this brand of buffered aspirin.
Number of sample, n = 25
Mean, u = 325.05 mg
Standard deviation, s = 0.5 mg
For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean ± z × standard deviation/√n
It becomes
325.05 ± 1.96 × 0.5/√25
= 325.05 ± 1.96 × 0.1
= 325.05 ± 0.196
The lower end of the confidence interval is 325.05 - 0.196 =324.854
The upper end of the confidence interval is 325.05 + 0.196 =325.246
Therefore, with 95% confidence interval, the mean content of this brand of buffered aspirin is between 324.854 mg and 325.246 mg
Hello!
<em><u>Answer:</u></em>
<em><u>=-4.25</u></em>
<em><u>*The answer must have a negative sign.*</u></em>
Step-by-step explanation:
Lesson: Add/Subtract decimals.
First, you add/subtract by the numbers from left too right.
Then you can also add by the numbers too.
Final answer is →
Hope this helps!
Thanks!
-Charlie
Have a nice day! :)