Answer:
85%
Step-by-step explanation:
34/40 = 0.85
0.85 * 100 = 85
Well, an easier way than to divide fractions is to multiply the fractions, but to do that, flip the numerator and denominator for the second fraction.
For example, it becomes: 7 48 2
-------- × -------- = --------- (top×top & bottom×bottom)
24 35 5
Answer is: 2/5
Answer:
1.99
Step-by-step explanation:
We have been given the heights of adult men in America are normally distributed, with a mean of 69.8 inches and a standard deviation of 2.61 inches. We are asked to find the z-score of height of man with 6 feet 3 inches.
We will use z-score formula to solve our given problem.
, where,
z = z-score,
x = Sample score,
= Mean,
= Standard deviation,
6 feet 3 inches = 72+3 inches = 75 inches
Therefore, the z-score for the man with height of 6 feet 3 inches is 1.99.