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Kamila [148]
2 years ago
15

Cammy bought a jacket at $43.50. The

Mathematics
2 answers:
stiv31 [10]2 years ago
8 0

Answer:

ypu need to use the method before change and after

Katen [24]2 years ago
8 0

well, the regular price was "x" and that's namely the 100%.

however today's price is 43.50, and we know that's 25% off the regular "x" price , hmmm so 100% - 25% = 75%, so 43.50 is really 75% of the regular price, so

\begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 43.50&75 \end{array}\implies \cfrac{x}{43.50}=\cfrac{100}{75}\implies \cfrac{x}{43.50}=\cfrac{4}{3} \\\\\\ 3x=174\implies x=\cfrac{174}{3}\implies x=58

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Gre4nikov [31]
<span>Let n be the number of taxis in NY. The average distance travelled is 60,000 miles, therefore the middle 95% will have the same average as the population, the reason being the mileage is symmetrically distributed about the mean Therefore the total number of miles in one year for the middle 95% is 60,000 * 0.95 * n
</span><span>The range of miles driven by the middle 95% can be found from the empirical rule that says: For a normal distribution, approximately 95% of the data points lie within the range plus and minus 2 standard deviations of the population mean. In this case the range is (60,000-22,000) to (60,000 + 22,000)</span>
3 0
2 years ago
Solve for x showing work
natali 33 [55]
X = 112
See attachment file below.

Hope it helped!

5 0
3 years ago
FIND THE MEDIAN OF THE DATA SET3,35,23,37,45,49,27,48<br> A.35<br> B.34<br> C.30.2<br> D.38
mojhsa [17]

Answer:

A. 35

Step-by-step explanation:

The median of a data set is the middle value when the data values are placed in order of size.

<u>Given data set</u>:

  • {3, 35, 23, 37, 45, 5, 49, 27, 48}

Place the data in <u>order of size</u>:

  • {3, 5, 23, 27, 35, 37, 45, 48, 49}

To find the median, divide the total number of data values (n) by 2.

  • If n/2 is a whole number, the median is halfway between the values in this position and the position above.
  • If n/2 is not a whole number, round it up to find the position of the median.

As there are 9 data values, the median value is:

\implies \dfrac{9}{2}=4.5 \implies \sf 5th\;value

Therefore, the median of the given data set is 35.

4 0
1 year ago
Read 2 more answers
Is ab perpendicular to cd ? Explain.
Afina-wow [57]
We know that
if two lines are perpendicular
then
the slopes 
m1*m2=-1

step 1
find the slope AB
A (0,2)
B (-3,-3)
m=(y2-y1)/(x2-x1)-----> m=(-3-2)/(-3-0)-----> m=-5/-3----> m1=5/3

step 2
find the slope CD
C (-4,1)
D (0,-2)
m=(y2-y1)/(x2-x1)-----> m=(-2-1)/(0+4)-----> m=--3/4----> m2=-3/4

step 3
multiply mi*m2
(5/3)*(-3/4)-----> -15/12
so
15/12 is not -1
therefore
 AB is not perpendicular to CD
4 0
3 years ago
What is the the value of x? Enter uour answer in the box. 91°, 8x+3°,10x-4°
zzz [600]

Answer:

x = 5 is the right answer.

Step-by-step explanation:

As we know sum of all angles in a triangle is 180°.Therefore in this question we will form an equation.

Sum of all the angles of a triangle = 180

91 + 10x - 4 +8x +3 = 180

90 + 18x = 180

18x + 90 - 90 = 180 - 90

18x = 90

x = 90÷18 = 5

Therefore x = 5 is the right answer.

5 0
3 years ago
Read 2 more answers
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