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Ghella [55]
3 years ago
6

10 and two tens, and then double the amount, and 5, 3, and 2. How much now?

Mathematics
1 answer:
DENIUS [597]3 years ago
8 0
Down load photo math
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the pie factory sells an apple pie with a diameter of 16 in. for $10.99. What's the approximate cost per square inch of surface
AURORKA [14]
I'm going to assume the crust covered by the dosenot matter because the total surface area cannot be found without the depth of the pie.

So the surface are is the area of the top of the pie, the top of the pie is circular and is equal to 2\pir²

The diameter is the sum of 2 radii, hence r=8

D=12
  = 2r =12
r=8

With the raduis the area can be found
A= 2\pir²
A=2\pi8² 
A=2(64)\pi
A=128\pi

If the pie cost 10.99, the cost per inch can be found by dividing the area by cost

cost/inch =128 \pi/10.99
cost/inch =11.64\pi
               = 11.64(3.14)
               = 36.57

The pie costs 36 cents per square inch
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3 years ago
given the value points (0, 25), (5, 20), (12, 13), (9, 16) and (21, 4), find the value of the correlation coefficient for the da
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2. Which interval notation represents the set of all real
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B. (2,20] is the correct answer
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The drama club collected $160 from ticket sales for the spring play. They need to collect at least $400 to pay for new lighting
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We assume all money is spent on new lighting. Since they currently have $160 and need $400 we can subtract what they currently have from what they need.

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Since we know the price of the ticket and now know they need $240 we can divide our $240 with the price of each ticket ($3)

$240/$3 = 80

So the drama club has to sell 80 more tickets in order to afford new lighting
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