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Anastasy [175]
3 years ago
10

I have another Brainliest

Mathematics
1 answer:
strojnjashka [21]3 years ago
8 0
Answer: “A” Opportunity cost is “the value of an investment opportunity you pass up in order to take another investment opportunity .” It’s pretty much the sacrifice you make to do something else.
Ex. To earn volunteer hours, Billy decided not to go to Bob’s birthday party.
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there are five bells which ring at interval of 4,5,12 and 15 minutes respectively at what minute those bells ring at the same ti
Rus_ich [418]
<h3>Answer:   60 minutes</h3>

=====================================================

Explanation:

Let's find the LCM of 4 and 5, which are the first two items of the list.

  • multiples of 4 are: 4,8,12,16,20,24,...
  • multiples of 5 are: 5,10,15,20,25,...

The smallest item in each list is 20, so the LCM of 4 and 5 is 20.

We can replace the "4,5" in the list "4,5,12,15" with "20". So our new list would be "20,12,15".

We then repeat the process of finding the LCM of the first two items

  • multiples of 20 are: 20,40,60,80,...
  • multiples of 12 are: 12,24,36,48,60,72,...

LCM of 20 and 12 is 60.

The list "20,12,15" condenses to "60,15".

Repeat this process of finding the LCM once more and you'll find the overall LCM is 60.

Therefore, the LCM of the entire set {4,5,12,15} is 60. This is the smallest multiple shared by all four values. Interestingly enough, the outer values pair up to multiply to 60, and so do the inner values.

4*15 = 60

5*12 = 60

The bells ring together every <u>60 minutes</u>

In other words, all of the bells ring together at the same time every hour (perhaps at the top of every hour; eg at 7:00 pm and at 8:00 pm, etc).

8 0
2 years ago
If k=<br> t-5k<br> and k= 4, what is the value of t?<br> A) -28<br> B) -12<br> C) 12<br> D) 28
Gre4nikov [31]

Answer:

24

Step-by-step explanation:

k = t - 5k

→ Substitute in k

4 = t - 20

→ Add 20 to both sides

24 = t

8 0
2 years ago
Read 2 more answers
A quadratic equation ax squared plus bx plus c equals 0ax2+bx+c=0 has minus−55 and 11 as solutions. Find the values of b and c i
Ludmilka [50]

Answer:

The answer to the question is b=44 while c=-605

7 0
3 years ago
Everybody's blood pressure varies over the course of the day. In a certain individual the resting diastolic blood pressure at ti
jeka94

Answer:

idk

Step-by-step explanation:

sssssoooooooooorrrrrrrrrryyyyyyyyy

6 0
3 years ago
Mike has $126 to spend at the amusement park he spends about 25% of the money on his tickets into the park how much does my cat
melamori03 [73]
25 percent of 126 is 31.5

126 - 31.5 = 94.5

Mike has $94.5 to spend.
8 0
3 years ago
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