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2 years ago

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Please help !!!!!!!!!!!!!!!!!!!!!!!!!!!You survey 127 employees, and learn that the number one thing on their wish list is free

coffee. If 100 employees drink on average 1.5 cups of coffee a day and the cost is $.40 per cup, how much will it cost the company to offer free coffee for the year if the
company is open 5 days a week all year?
a) $3,120
b) $10,400
c) $15,600
d) $39,000

1 answer:

valina [46]2 years ago

3 0

Answer:

c

Step-by-step explanation:

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Answer:

Girls in Mr. Chang's class: 28 - 21 ; # girl students = # total students - # boy students ; 7 girl students.

Boys in Mr. Chang's class: 28 - 7 ; # boy students = # total students - girl students ; 21 boy students.

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2 years ago

Write a number to represent the quantity.<br> a debt of $300

natka813 [3]

Answer:

A debt means subtracting from the original value so a debt of $300 can be expressed as -300.

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2 years ago

Find the difference of 259.63 and 154.21

Ne4ueva [31]

Answer:

105.42

Step-by-step explanation:

259.63

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105.42

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2 years ago

A survey of 1,000 men and women asked, "Do you earn over $50,000 per year?" The table below shows the responses for males and fe

Effectus [21]

Based on the data, it is found that "being female" and "earning over $50,000" are not independent events. the correct answer is option D.

<h3>What is probability?</h3>

Probability is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Two events, A and B are independent, if:

P(A $\cap$ B) = P(A) P(B)

In this problem, the events are:

Event A: Being female.
Event B: Earning over $50,000.

Out of the 1000 people, 450 are female, hence:

P(A) = $\dfrac{450}{1000}$ = 0.45

850 earn over $50,000, hence:

P(B) = $\dfrac{850}{1000}$ = 0.85

375 are women who earn over $50,000, hence:

P(A $\cap$ B) = $\dfrac{375}{1000}$ = 0.375

The multiplication of the probabilities is:

P(A $\cap$ B) = 0.45(0.85} = 0.3825

Therefore based on the data, it is found that "being female" and "earning over $50,000" are not independent events. the correct answer is option D.

To know more about probability follow

brainly.com/question/24756209

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3 0

1 year ago

The position of an object moving along an x axis is given by x = 3.24 t - 4.20 t2 + 1.07 t3, where x is in meters and t in secon

Pavel [41]

Answer and explanation:

Given : The position of an object moving along an x axis is given by $x=3.24t-4.20t^2+1.07t^3$ where x is in meters and t in seconds.

To find : The position of the object at the following values of t :

a) At t= 1 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(1)=3.24(1)-4.20(1)^2+1.07(1)^3$

$x(1)=3.24-4.20+1.07$

$x(1)=0.11$

b) At t= 2 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(2)=3.24(2)-4.20(2)^2+1.07(2)^3$

$x(2)=6.48-16.8+8.56$

$x(2)=-1.76$

c) At t= 3 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(3)=3.24(3)-4.20(3)^2+1.07(3)^3$

$x(3)=9.72-37.8+28.89$

$x(3)=0.81$

d) At t= 4 s

$x(t)=3.24t-4.20t^2+1.07t^3$

$x(4)=3.24(4)-4.20(4)^2+1.07(4)^3$

$x(4)=12.96-67.2+68.48$

$x(4)=14.24$

(e) What is the object's displacement between t = 0 and t = 4 s?

At t=0, x(0)=0

At t=4, x(4)=14.24

The displacement is given by,

$\triangle x=x(4)-x(0)$

$\triangle x=14.24-0$

$\triangle x=14.24$

(f) What is its average velocity from t = 2 s to t = 4 s?

At t=2, x(2)=-1.76

At t=4, x(4)=14.24

The average velocity is given by,

$\triangle x=x(4)-x(2)$

$\triangle x=14.24-(-1.76)$

$\triangle x=14.24+1.76$

$\triangle x=16$

4 0

2 years ago