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ExtremeBDS [4]
4 years ago
10

Waiting times to receive food after placing an order at the local subway sandwich shop follow an exponential distribution with a

mean of 68 seconds. calculate the probability a customer waits:
a. less than 40 seconds. (round your answer to 4 decimal places.) probability
b. more than 126 seconds. (round your answer to 4 decimal places.) probability
c. between 45 and 74 seconds. (round your answer to 4 decimal places.) probabilityp
d. fifty percent of the patrons wait less than how many seconds? what is the median? (round your answer to 2 decimal places.) median seconds
Mathematics
1 answer:
Debora [2.8K]4 years ago
4 0
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Ellen has recently inherited $5400, which she wants to deposit into a CD account. She has determined that her two best bets are
trapecia [35]

Answer:

Interest for case 2 is more i.e at interest rate 5.3% compounded quarterly

Step-by-step explanation:

Data provided in the question:

Principle amount = $5400

let us calculate the interest for t = 1 year

Case 1:

Rate of interest, r = 4.1%

Compounded semi-annually i.e number of periods, n = 2

Therefore,

Interest = Principle × \left( 1 + \frac{r}{n} \right)^{\Large{n\times t}} - Principle

on substituting the respective values, we get

Interest = $5400 × \left( 1 + \frac{0.041}{2} \right)^{\Large{2\times1}} - $5400

or

Interest = $5400 × 1.0205² - $5400

or

Interest = $5623.67 - $5400

= $223.67

Case 2:

Rate of interest, r = 5.3% = 0.053

Compounded quarterly i.e number of periods, n = 4

Therefore,

Interest = Principle × \left( 1 + \frac{r}{n} \right)^{\Large{n\times t}} - Principle

on substituting the respective values, we get

Interest = $5400 × \left( 1 + \frac{0.053}{4} \right)^{\Large{4\times1}} - $5400

or

Interest = $5400 × 1.01325⁴ - $5400

or

Interest = $5691.94 - $5400

= $291.94

Hence,

interest for case 2 is more i.e at interest rate 5.3% compounded quarterly

6 0
3 years ago
What is 0.41 divided by 3.69
Ratling [72]
0.41:3.69= \frac{0.41}{3.69} = \frac{0.41\cdot100}{3.69\cdot100} =\frac{41}{369} =\frac{41}{41\cdot9}=\frac{1}{9}
5 0
3 years ago
1.You’ve fallen down a slippery, eighteen-feet deep hole. Each hour, you climb up three feet, and then slip backwards two feet.
lisov135 [29]
Climb up 3 ft per hr and fall down 2 ft per hr


18 = 3h-2h

solve for h

h=18 hr
7 0
4 years ago
4. Find the percent of decrease from 340 to 150. Round to the nearest tenth of a
kramer

Answer:

52.9%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Henry is up for retirement after 35 long years at his pharmacy. Before retiring, he would like to know how much he would receive
satela [25.4K]

To find how much Henry can expect to receive from Social Security on a monthly basis, we first need to find how much he cant expect to receive from social security per year.

We know form our problem that Henry averaged an annual salary of $45,620, so to find how much can Henry expect to receive from Social Security per year, we just need to find the 42% of $45,620.

To find the 42% of $45,620, we are going to convert 42% to a decimal by dividing it by 100%, and then we are going to multiply the resulting decimal by $45,620:

\frac{42}{100} =0.42

Social security annual payment = (0.42)($45,620) = $19,160.40

Since there are 12 month in a year, we just need to divided the social security annual payment by 12 to find how much he can expect to receive each month.

Social security monthly payment = \frac{19,160.40}{12} = $1.596.70

We can conclude that Henry can expect to receive $1.596.70 monthly from Social Security.

3 0
3 years ago
Read 2 more answers
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