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castortr0y [4]
3 years ago
5

A webmaster makes $24 an hour for the first 38 hours she works during a week and $31 an hour for each hour worked over$38 hours.

Which piecewise equation models her total weekly pay Y in dollars as it relates to the number of hours X that she has worked during the week?
Mathematics
2 answers:
Basile [38]3 years ago
5 0

Answer:

y=\left\{\begin{matrix}24x & x\leq 38 \\ 31x & x > 38\end{matrix}\right.

Step-by-step explanation:

Here, x represents the number of hours she works in a week and y represents the amount she is paid,

Since, for the hours less than equal to 38,

She is paid $ 24 per hours,

That is, y = 24 x for x ≤ 38,

Also, she is paid $ 31 per hours for the hours more than 38,

That is, y = 31 x for x > 38,

Hence, the piece wish function that shows the given situation is,

y=\left\{\begin{matrix}24x & x\leq 38 \\ 31x & x > 38\end{matrix}\right.

Luden [163]3 years ago
3 0
X \leq 38       ->     24x
x > 38        ->      31(x-38) + 912

912 = 24*38   (You will have to have 38 hours to be able to be in this part of the piece wise function)
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Tom rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a factor of 21.
Ber [7]

The probability of getting a total that is a factor of 21 is 0.22

<u>Explanation:</u>

Factor of 21 is = 1, 3, 7, 21

Out of all the factors of 21, we cannot get 21 when the two die are rolled as the maximum sum that can be obtained is 12

The possible combinations are:

(1,2) (1,6)

(2,1) (2,5)

(3,4)

(4,3)

(5,2)

(6,1)

Total outcome = 6 X 6

                      = 36

Number of outcomes that is the factor of 21 is 8

The probability of getting a total that is a factor of 21 is \frac{8}{36}

p(21) = 0.22

Therefore, the probability of getting a total that is a factor of 21 is 0.22

5 0
3 years ago
Please help! geometry problem 3!
Vilka [71]
Comment
|First of all, the triangles are equal by ASA the way the diagram has been marked.

B and E are both right angles.
Side BC = Side DE
<BCA =< EDA 

So triangle BCA = triangle EDA

Now to the letters.
x = y - 1                 Add 1 to both sides.
x + 1 = y                (1)
3x - 2 = 2y + 1       Subtract 1 from both sides.
3x -2 - 1 = 2y
3x - 3 = 2y             Divide by 2
3x/2 - 3/2 = 2y/2
1.5x - 1.5 = y    (2)

Step One
Since (1) and (2) both have y isolated on their respective right sides, they can be equated.

1.5x - 1.5 = x + 1       Take an x from both sides.
0.5x - 1.5 = x - x + 1
0.5x - 1.5 = 1           Add  1.5 to both sides.
0.5x =  1 + 1.5
0.5x = 2.5                 Divide 0.5 on both sides.
0.5x/0.5 = 2.5/0.5

x = 5

Now we need a y value.
x = y - 1 
5 = y - 1 Add 1 to both sides.
5 + 1 = y - 1 + 1
6 = y 

So the 2 sides and the 2 angles are equal when 
x = 5
y = 6

C Answer <<<<<<



 


4 0
2 years ago
According to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets retu
KatRina [158]

Answer:  0.1

Step-by-step explanation:

Given :  A Houston department store sampled 80 items sold in January and found that 8 of the items were returned.

In other words, sample size : <em>n</em>=1040

Number of items returned : <em>x</em>= 8

Let <em>p</em> be the proportion of items returned for the population of sales transactions at the Houston store.

As per sample , the sample proportion of items returned for the population of sales transactions at the Houston store is :

\hat{p}=\dfrac{x}{n}=\dfrac{8}{80}=0.1

As we know that , <em>the sample proportion is the best estimate of the population proportion.</em>

Therefore,a point estimate of the proportion of items returned for the population of sales transactions at the Houston store is 0.1.

8 0
3 years ago
A jet ski rental charges a flat rate of $75, plus an additional $60 per hour. You do not want to spend more than $200. How many
yawa3891 [41]

Answer:

22.5

Step-by-step explanation:

You time 75 by 60. Then, you divided it by 200. The answer is 22.5.

5 0
3 years ago
In your notebook, draw several perpendicular lines. what kind of angles are formed? acute angles obtuse angles right angles
Ainat [17]
Right angles will be formed because in drawing 
the perpendicular lines they all form right angles
to begin with. With several more draw it will
still be the same as if you are drawing one 

the answer is -right angles

7 0
3 years ago
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