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RoseWind [281]
3 years ago
6

the cost of five different pairs of pants in a department store are $39.99, $31.99, $19.99, $23.99, and $26.99. What is the mean

price in the store?
Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
8 0
Keep in mind that means is the same as asking for the average. all you need to do is add all the values and divide them by the number of values, which is 5

<span>$39.99 +  $31.99 + $19.99 +$23.99 + $26.99= 142.95

mean= 142.95/5 = 28.59</span>
Katen [24]3 years ago
5 0
$28.59 is the mean (average)
   how to: 
1.) take all numbers and add them together
2.) take the number of numbers that you added and divide by that number

hope this helped!
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A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 31 ft/s. (a) A
Afina-wow [57]

Answer:

13.86 ft/sec

Step-by-step explanation:

If we let x = distance batter has run at time t and  D = distance from second base to the batter at  time t, then we know \frac{dx}{dt}=31 ft/s and we want \frac{dD}{dt} when he is halfway (at x = 45).

Using Pythagoras theorem

D^2=90^2+(90-x)^2\\\text{Differentiating with respect to t}\\2D\frac{dD}{dt}=0+2(90-x)(-1)\frac{dx}{dt}\\2D\frac{dD}{dt}=-2(90-x)\frac{dx}{dt}

When x=45

D^2=90^2+(90-x)^2\\D^2=90^2+(90-45)^2\\D^2=10125\\D=\sqrt{10125}

2D\frac{dD}{dt}=-2(90-x)\frac{dx}{dt}\\2\sqrt{10125}\frac{dD}{dt}=-2(90-45)(31)\\\frac{dD}{dt}=\frac{-2(45)(31)}{2\sqrt{10125}} =-13.86ft/s

Thus, when the batter is halfway to first base, the distance between second base and the batter is  decreasing at the rate of about 13.86 ft/sec.

4 0
3 years ago
J=(7x+13) K=(83-2x) and the sum of the measures of the angles is 141. What is the measure of each angle
natta225 [31]

Answer:

j=76 and k=65

Step-by-step explanation:

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HOPE IT HELLS U!!!!
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ladessa [460]
Lets write as an equation the info provided in the problem:
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Adding x meters to the width is: 200 + x
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We have to make the operations and solve:
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