The quotient of 22 and 7 (22/7) would be 3 R 1
10^-7 = 0.0000001
Its the 3rd choice.
Answer:
- C. 15.5 pounds
- D. 8.0 pounds
Step-by-step explanation:
Anything expressed to a precision smaller than 10 pounds will be more precise. Choices C and D are both expressed to a precision of 1/10 pound, so are more precise than a weight expressed to the nearest 10 pounds.
_____
The convention for indicating that the 0 in 10 is significant is to write the number with a trailing decimal point: 10. pounds. Since the number here is not written that way, we must presume its precision is 10 pounds (not 1 pound). Both of the choices 50 and 30 suffer the same problem.
It takes 40 minutes more going up or 40/60 = 0.67 hours
more.
Let us say that:
t = the time required for him running down
t + 0.67 = time required for him running up
Since the distance of running up and down must be equal
therefore:
(3 miles / hr) * (t + 0.67) = (5 miles / h) * t
3 t + 2.01 = 5 t
2 t = 2.01
t = 1.005 hr
So the total length of the hike is:
length = 2 * (5 miles / hr) * (1.005 hr)
<span>length = 10.05 miles</span>
Answer:
60 divided by 8
Step-by-step explanation:
60 divided by 8