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%
Set up a proportion
Units over actual height.
Then solve...for x by cross multiplying
Answer:
6/4=b/24
1.5=b/24
24(1.5)=b
36=b
Building is 36 ft tall
Step-by-step explanation:
Now, if you recall, there are 180° in π radians, now, so how many radians in 1°?
