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Zarrin [17]
3 years ago
15

In a group of 100 students, 60 are freshman, 55 are female, and 22 are female freshman. Find the probability that a student pick

ed from this group at random is either a freshman or female
Mathematics
1 answer:
tatyana61 [14]3 years ago
3 0

Answer:

93/100

Step-by-step explanation:

In a group of 100 students, 60 are freshman, 55 are female, and 22 are female freshman. Find the probability that a student picked from this group at random is either a freshman or female

Number of Freshman = 60

Number of female = 55

Number of Freshman female 22

Total number of students = 100

The probability that a student picked from this group at random is either a freshman or female

Thus P(freshman or female) = 60/100 + 55/100 - 22/100 = 93/100

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When Liz woke up in the morning, it was 6°F. By the late afternoon, the temperature had dropped 9°F.
Annette [7]

Given:

Temperature in the morning = 6°F.

By the late afternoon, the temperature had dropped 9°F.

To find:

The temperature by the late afternoon.

Solution:

Temperature by the late afternoon = Morning temperature - Dropped temperature

Using the given values and the above formula, we get

Temperature by the late afternoon = 6°F - 9°F

Temperature by the late afternoon = -3°F

Therefore, the temperature by the late afternoon is -3°F.

5 0
3 years ago
How far does the unicycle move if the wheel turns once?
algol [13]

The unicycle moves a distance of 251.20cm if the wheel turn once and the wheel must rotate 32 times to cover a distance of 100m

<h3>Circumference of a circle</h3>

The formula for calculating the circumference of a circle is given as:

C = 2pi r

r is the radius of the circle

a) r = 80/2 = 40cm

C = 2(3.14)(40)
C = 251.20 cm

Hence the unicycle moves a distance of 251.20cm if the wheel turn once

b) Number of revolution * 2pi r = distance covered

n * 2(3.14)(50) = 10000
314n = 10000
n = 10000/314

n =32

Hence the wheel must rotate 32 times to cover a distance of 100m

Learn more on circumference here: brainly.com/question/23986334

#SPJ1

8 0
2 years ago
Trevor took one of his friends out to lunch. The lunches cost $248.40 and he paid 12.5% sales tax. If Trevor left a 15% tip on t
bixtya [17]
He paid ...

-- The cost of the lunches      (100%  =  1.00 of it)    

-- 15% of the cost as a tip    (15%  =  0.15 of it)

-- 12% of the cost as sales tax  (12%  =  0.12 of it)

Total that he paid = (1.00 + 0.15 + 0.12)  =  1.27 of $248.40

                                                           =      $315.47   .

Trevor is one generous guy !
4 0
3 years ago
At CD Shack, all used CDs are the same price. Jesse spent $54 and Mimi spent $66 on used CDs. What is the most each used CD coul
Alinara [238K]
Hey there
__________
The correct answer is
Whatever each CD costs, what each person paid is that cost times the number of CDs purchased (no sales tax for this problem).
So, the price of one CD is a factor of $66 (a number of $ that divides $66 evenly).
In theory, it could be $1, $2, $3, $6, $11, $22, $66.
It could even be $0.50, $0.25, $0.20, $0.10, $0.05,...
Also, the price of one CD must be a factor of $54. such as $54,$27,$18,$9,$6,$3,$2,$1,... .
You are looking for the most that price could be.


The grew greatest price that is in both lists is $6.

How can you make those lists?
You can start with the total price, then the price divided by 2, by 3, by whatever whole number you can divide it.

Otherwise, you could find the greatest common factor of 66 and 54
from the prime factorization of both numbers.
___________________
Hope this helps you
5 0
3 years ago
AC =<br> Round your answer to the nearest hundredth.<br> A<br> 5<br> 35<br> B<br> C
baherus [9]

Answer:

2.87 = AC

Step-by-step explanation:

Since this is a right triangle we can use trig functions

sin theta = opp / hyp

sin 35 = AC /5

5 sin 35 = AC

2.867882182= AC

To the nearest hundredth

2.87 = AC

8 0
3 years ago
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