MWizard2k04

Surface area = 4 π r²

Volume = 4/3 π r³

8x - 3y = 38

3x - 2y = -1

8x = 38 + 3y

3x = -1 + 2y

5x = 39 + y

2x = 40 - y

x = 20 - 0.5y

Substutute x with 20 - 0.5y because x = 20 - 0.5y

3x = -1 + 2y

3 × (20 - 0.5y) = -1 + 2y

60 - 1.5y = -1 + 2y              |    +1

60 - 1.5y + 1 = 2y

61 - 1.5y = 2y                      | +1.5 y

61 = 3.5y

y = 122/7

Substitute y with 122/7 because y  =122/7

x = 20 - 0.5y

x = 20 - 0.5 × 122/7

x = 20 - 61/7

x = (140-61)/7

x = 79/7

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Solution

x = 79/7

y = 122/7

3 + 1 = 4 units → 128

1 unit → 128 ÷ 4 = 32 (Red Engines)

3 units → 32 × 3 = 96 (Blue Team)

\(\frac{60 - 55}{60} = \frac{5}{60} = \frac{1}{12}\)          

No matter how many times you arrange 9+10 it will still equal 19.

9 + 10 = 9 + 9 + 1

          = 18 + 1

         = 19

9 + 10 = 10 + 10 - 1

          = 20 - 1

          = 19

9 + 10 = 3 + 3 + 3 + 5 + 5

          = 8 + 8 + 3

          = 16  + 3

          = 19

9 + 10 = 10 + 9

           = 1 ten + 9 ones

           = ALIGN THEM AND IT IS 19

9 + 10 ≠ 21

it is always 19

(Please copy and paste this over Web2.0calc.com 9+10 questions.)

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