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mixer [17]
3 years ago
15

I do not get it but i sort of do

Mathematics
2 answers:
Elena L [17]3 years ago
7 0
For question 2:
150÷20=7.5 (That doesn't work for the number of boxes)
20×7=140 so that means that they need 8 boxes because only 20 books can fit in each box and 150-140=10 and so those 10 books need their own box so it's 7+1=8
Dominik [7]3 years ago
5 0
150 divided by 20 is 7 with a remainder of 10

The quotient is 7, but the answer is 8 I'm not sure if this is what you were looking for but I hope it helped
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contestants in a dance marathon rest for the same amount of time every hour. a couple rests for 27 minutes in 6 hours. how long
julsineya [31]
In the given question, there are several important information's that needs to be noticed. based on these information's the correct answer to the question can be easily deduced. It is already known that the contestants rest for the same amount of time every hour. In 6 hours they rest for 27 minutes. The 6 hours has to be converted to minutes first.
Then 6 hours = (6 * 60) minutes
                       = 360 minutes
So we have to first determine the amount of rest each contestants take in 1 hour.
Then
In 360 minutes the couple rests for a total time = 27 minutes
In 60 minutes the couple will rest for = (27/360) * 60
                                                           = 4.5 minutes
So the couple rests for 4.5 minutes in 1 hour
Then
In 8 hours the couple will rest for = (8 * 4.5) minutes
                                                     = 36 minutes.
The couple will rest for 36 minutes in 8 hours.
6 0
3 years ago
Problem: A federal agency is deciding which of two waste dump projects to investigate. A top administrator estimates that the pr
xz_007 [3.2K]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

For point (a) :

In this, two points are  exclusive to one another,  it is a probability that first or the  second project will have breaches,

\to P = P(A) + P(B)

       = 0.3 + 0.25\\\\= 0.55

Since the p(A & B)=0  is mutually exclusive.

For point (b):

\to P = ( \frac{1 -p(A)) \times P(B)}{((1-P(A)) \times  P(B) + P(A&B)}) \\\\

       = \frac{(1 -0.3)\times 0.25}{(1-0.3)*0.25 + 0} \\\\ = 1

For point (c):

 if both a and b are independent:

(a):

P = P(A) + P(B) - P(A)\times P(B) \\\\

   = 0.3 + 0.25 - 0.3 \times 0.25\\\\ = 0.475

(b):

P = \frac{(1 -p(A)) \times P(B)}{((1-P(A)) \timesP(B) + P(A&B))} \\\\

   = \frac{(1 - 0.3)\times 0.25}{((1-0.3)\times0.25 + 0.3\times0.25)}\\\\ = 0.7

7 0
3 years ago
On a number line, the distance from zero to -8 is 8 units.
Yuri [45]
The answer is B because the absolute value of -8 is 8. Hope this helps!
5 0
3 years ago
A guidance counselor surveys a random sample of 50 out of 1200 high school students. The results of the survey are shown. Which
LUCKY_DIMON [66]

Answer:

last one(960)

Step-by-step explanation:

80 percent of 1200 is 960

6 0
3 years ago
Read 2 more answers
67,124 x three fourths = ________. Will the product of this equation be less than or greater than 67,124? Explain your reasoning
Lera25 [3.4K]
67,124 x 3/4 = 50,343

It is less than because after you multiply a whole by a fraction it creates a number that is less than that whole number
5 0
3 years ago
Read 2 more answers
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