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jeka94
3 years ago
12

Ross needs to have a procedure done. because he is over 65, he is on medicare. their plan says that according to their plan thei

r allowed amount is 7/8 of what the doctor's office charges. of that amount they will pay 5/6, and ross will pay 1/6 out of pocket. if ross had to pay $300 then how much did the office want to charge for the procedure?
a. $1,800b)$2057c)$2400d)$3057
Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
3 0
The office is charging a. $1,800.
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7.
alexdok [17]
7) A
8) C
9) B
I’m not certain but I hope this helps you...sorry if I got it wrong!!
4 0
3 years ago
We are interested in the amount that students study per week. Suppose you collected the following data in hours {4.4, 5.2, 6.4,
olga nikolaevna [1]

Answer:

Step-by-step explanation:

Hello!

The objective is to estimate the average time a student studies per week.

A sample of 8 students was taken and the time they spent studying in one week was recorded.

4.4, 5.2, 6.4, 6.8, 7.1, 7.3, 8.3, 8.4

n= 8

X[bar]= ∑X/n= 53.9/8= 6.7375 ≅ 6.74

S²= 1/(n-1)*[∑X²-(∑X)²/n]= 1/7*[376.75-(53.9²)/8]= 1.94

S= 1.39

Assuming that the variable "weekly time a student spends studying" has a normal distribution, since the sample is small, the statistic to use to perform the estimation is the student's t, the formula for the interval is:

X[bar] ± t_{n-1;1-\alpha /2}* (S/√n)

t_{n-1;1-\alpha /2}= t_{7;0.975}= 2.365

6.74 ± 2.365 * (1.36/√8)

[5.6;7.88]

Using a confidence level of 95% you'd expect that the average time a student spends studying per week is contained by the interval [5.6;7.88]

I hope this helps!

3 0
3 years ago
Read 2 more answers
The discriminant of a quadratic equation is -7. Classify the number and type of roots.
lyudmila [28]
Hello,

Answer D.
====================

5 0
3 years ago
Graham crackers 222
Natali5045456 [20]

Answer: 10?

Step-by-step explanation: Just divide 20/2 and you get the answer. Ight Ima head out

5 0
2 years ago
Read 2 more answers
Which of these is the same as 8/9 divided 2/3
swat32
Well, since you didn't attach the options. I will try to simplify the problem for you.⬇

Problem➡8/9 ÷2/3

~How to solve it ⬇
8(3) / 9(2) = 24/18

So, that means that your answer might have to be
1 1/3~
4 0
3 years ago
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