Answer:
They walked about 125.6 meters
Step-by-step explanation:
40 is the diameter and just multiply it by 3.14
Answer:
The answer is the option C
Step-by-step explanation:
we know that
The perimeter of a rectangle is equal to
where
b is the base side of the rectangle
h is the height of the rectangle
In this problem we have that
The length of side x is equal to the height of rectangle
so
It is A because 13/13 (=1) and 13/13 - 8/13 = 5/13
Hope this helped :)
Answer:
97%
Step-by-step explanation:
for such a question we can use the percentage numbers like real unit numbers, as we need to analyze just the percentage numbers and align them with another percentage number with the result of another percentage number.
so, we just use the percentage numbers and deal with mean values and such like with real unit numbers.
therefore we need to find x
(79 + 92 + 71 + 86 + x) / 5 = 85
as the sum of all numbers divided by the number of measurements is the mean value.
and so,
79 + 92 + 71 + 86 + x = 425
328 + x = 425
x = 97
so, the next site must be 97%, so that the average for the 5 surveys will be exactly 85%
