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ladessa [460]
3 years ago
14

A circular rug has a circumference of 12.56 feet. What is the area of the rug? (Use 3.14 for .)

Mathematics
1 answer:
viktelen [127]3 years ago
4 0
Unbelievably the same answer! Why? circumference is r * 2 * 3.14 = C
so i divided 12.56 with 3.14 = 4 / 2 = 2
the area of circle r^2 * 3.14 = A
2*2 = 4 * 3.14 is the same as circumference

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Tresset [83]

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going upp then downn

Step-by-step explanation:

3 0
3 years ago
40 is 80% of what number?
agasfer [191]

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50

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40/8/10  = 400 / 80 = 50

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6 0
3 years ago
A man bought 42 stamps, some 13¢ and some 18¢. How many of each kind did he buy if the cost was $6.66?
OverLord2011 [107]
Let's call the 13¢ stamps a and the 18¢ stamps b: a+b = 42 and therefore a= 42-b (formula 1) 0.13a+0.18b= 6.66 In this formula, substitute the value of a according to formula 1: 0.13(42-b)+0.18b= 6.66 Multiply on the left to get rid of the parenthesis: 5.46-0.13b+0.18b= 6.66 Subtract 5.46 from both sides: -0.13b+0.18b= 1.20 Add on the left: 0.05b= 1.20 Divide both sides by 0.05 b= 24 You have 24 18¢ stamps and: 42-24= 18 13¢ stamps Check: (24 x 0.18) + (18 x 0.13)= 6.66 Correct.
5 0
3 years ago
Hint: Plug each number into the formula a^2 + b^2 = c^2. Then see which set of numbers balances out.
Anni [7]

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A

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7 0
2 years ago
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Sedbober [7]

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A linear equation is expressed in the slope-intercept form as y = mx + b.

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Therefore, the equation that is a linear equation is: C. 2x - 3y = 7.

Learn more about linear equation on:

brainly.com/question/15602982

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4 0
1 year ago
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