Answer:
this is very hard i donof solve it
Step-by-step explanation:
sorrry
The value of the probability P(S or T) is 39%
<h3>How to determine the probability?</h3>
The probability values are given as:
P(S) = 12% P(T) =27%
For mutually exclusive events,
P(S or T) = P(S) + P(T)
This gives
P(S or T) = 12% + 27%
Evaluate the sum
P(S or T) = 39%
Hence, the value of the probability P(S or T) is 39%
Read more about probability at:
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Answer:
-$3.25
Step-by-step explanation:
She had $5 to begin with and ended with $1.75 the change is - because she has less 5-1.75=3.25
Answer:
Option C, 1/35
Step-by-step explanation:
Given
Proportion of town that has blue eyes = 1/5 = 0.2
Proportion of town that has brown eyes = 1/7
The probability of choosing either a blue eye or a brown eye person is
Probability of blue eye individual * Probability of brown eye individual
= 1/5 * 1/7 = 1/35
Hence, option C is correct
Answer:
Under this conditions 8.15 strips will be needed to cover the floor.
Step-by-step explanation:
In order to solve this problem we first need to calculate the area of the floor, since it's rectangular it's area is given by the product of it's length and width. In this case one of these measurements was given to us with a mixed unit, we need to convert it to a single unit in order to calculate correctly. This is done bellow:
width = 13 ft 6 in
width = 13 ft + 6 in
width = 13 ft + (6 in)/12 = 13 + 0.5 = 13.5 ft
Now we can calculate the area of the floor as shown bellow:
floor area = width*length = 14*13.5 = 189 ft²
Since each strip is 29 ft² to calculate how many strip will be used we need to divide the area of the whole floor by the area of each strip. We have:
number of strips = 189/29 = 6.52
Althought there must be 25% more strips, so we need to multiply that value by 1.25.
number of strips = 6.52*1.25 = 8.15
Under this conditions 8.15 strips will be needed to cover the floor.
