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VLD [36.1K]
2 years ago
12

Change the following mixed number to an improper fraction. Reduce if possible. 7 81/1000

Mathematics
2 answers:
pogonyaev2 years ago
7 0

The answer is 7081/1000

DanielleElmas [232]2 years ago
6 0

Step-by-step explanation:

7 = 7×1 = 7×1000/1000 = 7000/1000

7000/1000 + 81/1000 = 7081/1000

this can't be further simplified, as the only factors of 1000 are

2 and 5 and then multiples of them.

neither of them can be a factor of 7081 (which is clearly neither an even number nor a multiple of 5).

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3 years ago
You give 1/2 up a $46,000 salary to go back to school for 5 years. The total cost for going to school is $22,000. How much money
Ket [755]

The individual needs to earn $74,750 salary per year in order to recover the investment in 4 years.

What salary amount makes the individual as they were without a salary cut?

By the time the individual resumes back for work after 5 years, they need to earn their previous salary of $46,000 and recover the lost salaries, which is half of $46,000 lost in the last 5 years.

Total salaries lost=1/2*$46,000*5years

Total salaries lost=$115,000

Because the salaries lost needs to be recovered over 4 years, the extra earnings over and above the $46,000 in 4 years is the total salaries lost divided by 4 years

extra salary per year=$115,000/4

extra salary per year=$28,750

Total salary now=prior salary+ extra salary per year

Total salary now=$46,000+$28,750

Total salary now=$74,750

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4 0
1 year ago
In an article about the cost of health care, USA Today reported that a visit to a hospital emergency room has a mean cost of $14
Misha Larkins [42]

Answer: 0.8461

Step-by-step explanation:

Given : \mu=144\ \ ; \sigma=392

Let x be the random variable that represents the cost for the hospital emergency room visit.

We assume that cost for the hospital emergency room visit is normally distributed .

z-score for x=1000 ,

z=\dfrac{1000-1400}{392}\approx-1.02\ \ \ [\because z=\dfrac{x-\mu}{\sigma}]

Using z-value table , we have

P-value =P(x>1000)=P(z>-1.02)=1-P(z≤ -1.02)=1-0.1538642

=0.8461358≈0.8461  [Rounded nearest 4 decimal places]

Hence, the probability that the cost will be more than $1000 = 0.8461

3 0
3 years ago
What is 3 × 8000283743729.
Keith_Richards [23]

Dear user,

3 × 8000283743729 = 2.4000851

7 0
3 years ago
Read 2 more answers
Melinda ran 8,791 meters on Monday and 2,899 meters on Tuesday. How many more meters did she run on Monday than on Tuesday?
Sati [7]

Answer:

8,791- 2,899= 5892

Step-by-step explanation:

Melinda ran 5,892 more meters on monday than tuesday

8 0
2 years ago
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