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klasskru [66]
3 years ago
15

ANSWER ONLY IF YOU KNOW ( no links or ill report you)

Mathematics
1 answer:
Elis [28]3 years ago
4 0

Step-by-step explanation:

C=2\pi r

C=2*\pi *28

C=56\pi

Yes, it is because the circumference is always 2\pi times the amount of the radius.

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30 girls and boys have planned for a picnic. There is a ratio of 3 girls to 7 boys. How many boys are there?
nirvana33 [79]
Should be 21 boys because 7+7+7 equal 21 and 3+3+3 equal 9 which equals 30
3 0
3 years ago
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The diameter of a basketball is 245 cm. What is the circumference?​
maks197457 [2]

Answer: 769.3

Step-by-step explanation:

C=2\pi r\\

C=2*3.14*122.5

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5 0
3 years ago
Use substitution to solve each system of equations.<br> y = 5x -2<br> 3 x- 5y =4
Nezavi [6.7K]
  • x = 3/11
  • y = -7/11

Step-by-step explanation:

y = 5x - 2…Equation 1

3x - 5y = 4…Equation 2

Subtitute value of y to Equation 2 :

3x - 5(5x - 2) = 4

3x - 25x + 10 = 4

-22x + 10 = 4

10 - 4 = 22x

6 = 22x

6/22 = x

<u>3/11 = </u><u>x</u>

Subtitute value of x to one of Equation :

for example Equation 2…

3x - 5y = 4

3(3/11) - 5y = 4

9/11 - 5y = 4

9/11 - 4 = 5y

(9 - 44)/11 = 5y

(-35)/11 = 5y

(-35)/11 × 1/5 = y

<u>-7/11 = y</u>

7 0
3 years ago
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Their sum is -11 and difference is 41
djyliett [7]

Answer:

15 and -26.

Step-by-step explanation:

6 0
2 years ago
Max bought tools costing $75.He made a $30 down payment and plans to pay off the rest in 5 months .How much will Max's monthly p
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Max will have to make a monthly payment of $9

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