First you'd convert the seconds into minutes by dividing.
18,000 / 60 (60 secs in a min) = 300 minutes
Then, similarly, you would convert the minutes into hours.
300 / 60 (60 mins in an hr) = 5 hours
The answer is 5 hours.
Minimum required sample size for a desired margin of error and confidence level when it is a proportion problem: n = (z2÷margin of error2)*p-hat*q-hat
The maximum value of p-hat*q-hat occurs where p-hat = .5 (found by taking the derivative of (p-hat)*(1-p-hat) and setting it equal to 0 to find the maximum. n = ( 2.5762( for 99% confidence interval)÷.0482 )*.5*.5 = 720.028 or 721
Answer:
2.875 mi
Step-by-step explanation:
A scale factor (SF) is the ratio of two corresponding lengths in similar figures.
SF = actual distance/map distance = 5.75 mi/2 in
or 1 in = 2.875 mi
On the map, the distance from the library to the park is 1 in, so the actual distance is 2.875 mi.
Answer:
If solving for y: y = 8 - 2x
If solving for x: x = 
Step-by-step explanation:
<u>To solve for y:</u>
Factor out the common term, which in this case is 3.
3(2x + y) = 24
Divide both sides by 3.
2x + y = 
Simplify to 8.
2x + y = 8
Subtract 2x from both sides.
y = 8 - 2x
<u>To solve for x: </u>
Factor out the common term, which in this case is 3.
3(2x + y) = 24
Divide both sides by 3.
2x + y =
Simplify to 8.
2x + y = 8
Subtract y from both sides.
2x = 8 − y
Divide both sides by 2.
x =
Answer:
1.33 km
Step-by-step explanation:
(3 min) (2/3 min) = 2 min
(2 km) (2/3 km) = 1.33 km
