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igomit [66]
3 years ago
8

Work at a convenience store 60% of your time, and earn $11.00 an hour. Referee games at your city park 25% of your time, and ear

n $19.00 an hour. Do your elderly neighbor’s housework 15% of your time, and earn $16.00 an hour. What will your average hourly wage be? Enter your answer up to two decimal places.
Mathematics
1 answer:
pogonyaev3 years ago
3 0

Answer:

13.75

Step-by-step explanation:

The expected value of the hourly wage is the sum of the probabilities (percentage of time spent on each job) multiplied by the payoff (money earned) from each possible occurrence (job):

(0.6 × 11) + (0.25 × 19) + (0.15 × 16) = $13.75.

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the ratio of pink marbles to White Marbles Tamara's bag is equal to 1:5 what is the percent of pink marbles
dusya [7]
It would be 20% because if you take 100 times 1/5, which is the same as 100/5, you would get 20, which is 1/5.
8 0
2 years ago
Read 2 more answers
Frank has recentlybstarted living a healthier lifestyle . He originally weighed 230 and a half pounds . Now he weighs 198 and th
Ksivusya [100]

Answer:

31 9/10

Step-by-step explanation:

if u want to find out how many pounds u lose u subtract 230 1/2 by 198 3/5

230 5/10 minus 198 6/10

31 9/10

hope this ehlps

5 0
3 years ago
Read 2 more answers
Out of a sample 650 high school students, 321 take the bus to school every day. construct a 99% confidence interval for the popu
gtnhenbr [62]

A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)

We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday

A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.

The confidence interval of proportions is given by:

π ± z √(π (1-π) /n)

π is the sample proportion.

z is the critical value.

n is the sample size.

For 99% confidence interval the value of z is 2.58

π = 321/650

The confidence interval is given by

=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)

= (0.493846 ± 0.050594)

=(0.4434 , 0.5443)

=(44.34 % , 54.43 %)

Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)

<u>Learn more about confidence interval:</u>

brainly.com/question/28052710

# SPJ4

8 0
2 years ago
Graph y=-1/2x^2-1. Identify the vertex of the graph. tell whether it is a minimum or maximum. (To clarify, 1/2 is a fraction *x^
ahrayia [7]
y= -\frac{1}{2} x^{2}-1 is a quadratic function, so its graph is a parabola.

Notice that the coefficient of x is 0, this always means that the axis of symmetry is the y-axis.

That is, the vertex of the parabola is in the y-axis, so the x-coordinate of the vertex is 0.

for x=0, y=-1. So the vertex is (0, -1)

The coefficient of x^{2} is negative. This means that the parabola opens downwards, so the vertex is a maximum.


Answer: (0, -1) , maximum (none of the choices)
5 0
3 years ago
You and your partner decide to buy a house. The house costs £325,000. It will take 25 years
vekshin1

Answer:

66.66%

Step-by-step explanation:

follow the steps to get answer

plz thanks me and mark as

5 0
2 years ago
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