36/40 = 90%
<span>
work
36/40= 0.9
0.9x100 =90
</span>
Answer:
B) -0.4 seconds
Step-by-step explanation:
Laps: 25
Goal: -10 seconds to all 25 laps combined (10 seconds difference => -10)
divide by total laps
-10 /25 = -0.4s difference each lap
It takes him 17 minutes to make each shoe.
<em>How to Solve: </em>
- take away the 30 min lunch break from the time becomes 11:45 to 4:00
- calculate the distance from 11:45 to 4:00 which is 4 hours and 15 minutes to complete each shoe.
- Convert the hours into 60 minutes each so 60*4= 240 now add the extra minutes 240+15= 255 minutes
- Now divide that bye 15 shoes 255/15= 17 minutes
- So it takes 17 minutes to make each shoe. :)
Answer:
The best conclusion is that we are 90% that the true population proportion of Republicans that voted for Mitt Romney is between 0.7273 and 0.8106.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
The 90% confidence interval for the proportion of Republican voters that had voted for Mitt Romney is (0.7273, 0.8106). The best conclusion is that we are 90% that the true population proportion of Republicans that voted for Mitt Romney is between 0.7273 and 0.8106.
Answer:
17 cm.
Step-by-step explanation:
Because 12 cm + 5 cm. is 17 cm.
