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Mumz [18]
3 years ago
14

You are a receptionist at a doctor's office. A patient's bill for a checkup totals $85.00. The patient's health insurance requir

es the patient to pay 20% of the total bill. How much should the patient pay for the checkup?
Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

$17.

To find this, set up a simple fraction like equation. Using the is over of technique, this equation is formed.

x / 20 = 85 / 100

Multiply 20 with 85 before dividing by 100 to get the final answer of 17.

Hope this helps!

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From a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men in the delegation?
Ostrovityanka [42]

Answer:

The expected number of men in the delegation is 0.86.

Step-by-step explanation:

Number of men = 3

Number of women = 4

A delegation of 2 is selected.

Let X be the number of men selected. So, the possible values of X are 0,1,2.

P(X=0)=\dfrac{^3C_0\times ^4C_2}{^7C_2}=\dfrac{2}{7}

P(X=1)=\dfrac{^3C_1\times ^4C_1}{^7C_2}=\dfrac{4}{7}

P(X=2)=\dfrac{^3C_2\times ^4C_0}{^7C_2}=\dfrac{1}{7}

The expected number of men in the delegation is

E(x)=0\times P(X=0)+1\times P(X=1)+2\times P(X=2)

E(x)=0\times \dfrac{2}{7}+1\times \dfrac{4}{7}+2\times \dfrac{1}{7}

E(x)=\dfrac{6}{7}

E(x)\approx 0.86

Therefore, the expected number of men in the delegation is 0.86.

4 0
3 years ago
Can someone help me on this one Please
Mumz [18]
X-4y=1
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Answer:

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Step-by-step explanation:

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