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horsena [70]
4 years ago
11

Solve each of the following equations for the missing variable.

Mathematics
2 answers:
White raven [17]4 years ago
6 0

Answer:

x = -20

Step-by-step explanation:

- 2.5x - 10 = 40

Collect like terms and simplify

- 2.5x = 40 + 10 \\  - 2.5x = 50

Divide both sides of the equation by -2.5

\frac{ - 2.5x}{ - 2.5}  =  \frac{50}{ - 2.5}

Simplify

x =  - 20

Ierofanga [76]4 years ago
4 0
The answer for -2.5x-10=40 would be:
x = - 20.
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3 years ago
An insurance company divides its policyholders into low-risk and high-risk classes. 60% were in the low-risk class and 40% in th
AleksAgata [21]

Answer:

a). 0.294

b) 0.11

Step-by-step explanation:

From the given information:

the probability of the low risk = 0.60

the probability of the high risk = 0.40

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let C_1 represent 1 claim

let C_2 represent 2 claim :

For low risk;

so, C_o  = (0.80 * 0.60 = 0.48),  C_1 =  (0.15* 0.60=0.09),   C_2 = (0.05 *  0.60=0.03)

For high risk:

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Therefore:

a),  the probability that a randomly selected policyholder is high-risk and filed no claims can be computed as:

P(H|C_o) = \dfrac{P(H \cap C_o)}{P(C_o)}

P(H|C_o) = \dfrac{(0.2)}{(0.48+0.2)}

P(H|C_o) = \dfrac{(0.2)}{(0.68)}

P(H|C_o) = 0.294

b) What is the probability that a randomly selected policyholder filed two claims?

the probability that a randomly selected policyholder be filled with two claims = 0.03 + 0.08

= 0.11

7 0
3 years ago
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