I think 34? because 34 x 2 equals 68, but 35 x 2 is 70?
Answer:
d. $28.70
Step-by-step explanation:
first you divide 126 by 9 and you get 14 then you times 14 by 2.05 and you come out with a total 28.70
The probability of one woman to have height less than 64.4 in is 0.6293
<u>Explanation:</u>
Given:
Mean, μ = 64.4
Standard deviation, δ = 1.8
Probability that the height of the woman is less than 65 inch = ?
So,
P(x < 65) = 65 - μ / δ

P (x < 65) = P( z < 0.33)
Finding the probability value from the z table we get:
P( z < 0.33) = 0.6293
Therefore, the probability of one woman to have height less than 64.4 in is 0.6293
Answer:
$32.80
Step-by-step explanation:
Let f be the cost of a file, then a storybook costs 3f ( 3 times as much )
Then the difference in cost is
3f - f = 16.40, that is
2f = 16.40 ( divide both sides by 2 )
f = 8.20
The cost of a file is $8.20 and the cost of a storybook is 3 × $8.20 = $24.60
The total cost of the 2 items = $8.20 + $24.60 = $32.80