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solong [7]
3 years ago
12

The radius of a coin is 12 mm what is the diameter of the coin what is the circumference of the coin what is the area of the coi

n
Mathematics
1 answer:
Fudgin [204]3 years ago
6 0

Answer:

Step-by-step explanation:

radius of a coin is 12 mm

Diameter of the coin is twice the radius  = 2 x 12mm = 24mm

The circumference of the coin= 2πr = 2 x3.14 x 12 = 75.36m

Area of coin = πr²= 3.14 x 12 x12 = 452.16mm²

what is the area of the coin

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Rick Ross owns a flower shop named Ricky Rosé. He ordered 200 flowers for Mother's Day. He ordered roses at $1.50 each, carnatio
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80 roses, 50 carnations and 70 daisies were ordered.

Step-by-step explanation:

From the information provided, you can write the following equations:

x+y+z=200 (1)

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z=y+20 (3)

First, you can replace (3) in (1) and (2):

x+y+y+20=200

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x+2y=180 (4)

1.50x+8.35y=537.50 (5)

You can solve for x in (4):

x=180-2y (6)

Then, you can replace (6) in (5) and solve for y:

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270-3y+8.35y=537.50

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y=267.50/5.35

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Finally, you can replace the value of y in (3) to find z:

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z=50+20

z=70

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3 years ago
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