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MArishka [77]
3 years ago
13

Find the value of the variable. Then find the angle measures of the polygon.

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
7 0
First set up the equation (sum of the angles is 180)

2x + 2(x-1) + (5x +2) = 180

distribute:
2x + 2x -2 + 5x +2 = 180

combine like terms:
9x = 180
solve for x:

x = 20

SO:

2x° = 2(20) = 40 degrees
2(x-1)° = 2(20) - 2 = 40 - 2 = 38 degrees
5x + 2°= 5(20) + 2 = 100 + 2=102 degrees

check: 40 + 38 + 102 = 180
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For each of the terms below, give a brief definition.
irinina [24]

Answer:

term

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constant

occurring continuously over a period of time

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5 0
4 years ago
the price of a sandwich is $1.50 more than the price of a smoothie,which is d dollars.What does the expression d+1.5 represent?
yuradex [85]
D + 1.5......with d being the price of a smoothie.....the expression would represent the total cost of one smoothie + one sandwich.
5 0
4 years ago
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A telemarketing company calls telephone numbers chosen at random. It finds that 30% of calls are not completed (the party does n
cupoosta [38]

Answer:

21%

Step-by-step explanation:

Actually there are three levels of process here.

If 100 calls are made only 70 calls are completed (since 30%not completed)

Out of these 70 completed we find that 40% i.e. 28 calls to a woman and 30% i.e. 21 go to a man.

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Total percent of calls result in a sale = 12.6+8.4=21

So 21% of calls result in a sale

7 0
3 years ago
X*y = 154<br> difference between x and y is 3
sergiy2304 [10]

Answer:

x=51.3 and y=3 and that is equal to 154 don't forget to put a bar notation in .3 in 51.3

5 0
3 years ago
Can anyone help? I will mark you as brainliest!
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The answer is $310,500!!
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