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nikdorinn [45]
2 years ago
9

What is the area of the sector of a circle with radius r=2 cm, and the measure of its intercepted arc of 150 degrees ?

Mathematics
1 answer:
AURORKA [14]2 years ago
6 0
There are is 160 metres squared is the answer to this question
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40 tickets were sold for a concert, some at 75 cents and the rest at $1.25. if the total raised was $42, how many had the cheape
Murljashka [212]

Answer:

34

Step-by-step explanation:

$1.25 = 125 cents.

$42 = 4200 cents

Tickets sold at 75 cents = x

Tickets sold at 125 cents = y

x + y = 40

75x + 125y = 4200

Multiply the first equation by 75

75x + 75y = 3000

75x + 125y = 4200

Subtract the the second equation from the first.

75x + 75y = 3000

- 75x + 125y = 4200

-------------------------------

0 - 150y = - 1200

Divide both sides by - 150

-150y/-150 = -1200/-150

y = 8

Substitute y = 8 into the first equation

x + y = 42

x + 8 = 42

x = 42 - 8

x = 34

34 tickets were sold for 75 cents

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2 years ago
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Tcecarenko [31]

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Step-by-step explanation:

4.20x12

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Commutative property of multiplication is shown above. This is because no matter how you put them, the answer will still be 140. 
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