ElectricPavlov

x = 1.5 y     or    y = 2/3 x

x = .6z        or    z = 1 2/3 x

x                                                       summed, the red equations = 80

2/3 x + 1 2/3 x   + x = 80

3 1/3 x = 80

x = 24 sudents

5⁴⁰  = 5 * 5³⁹

5 * 5³⁹  -  5³⁹ =

4 * 5³⁹                            which is obviously divisible by '4'         4* x    is divisiable by 4  (x is 5³⁹ in this case)

Plugging into the web2.0 calculator:

1+2+3+4+5+6+7+8+9+10+6+14+5+4+9+4+5+5+55+2+2+5+5+5+45+2+5+1000x2 = 2233

11 m/hr * 5280 ft / mi  * 12 in / ft * 1 hr /60 min = 11616 in/min

Circumference circle = 2 pi r  

  13 in * 2 * pi = circumference of wheel per  revolution

11616  in/m  /  26 pi in / rev  =    142.21  rev /min

142.21 rev / min  *   2pi Radians / rev = 893.54  R/min

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We need dimensions that are in whole number integers to fit the cubes in the box

10 x 10 x 12    would work      surface area   = 680 cm²

at 45 degrees and 225 degrees   sin and cos are equal and of the the same +- sign      Q 1   Q 3

2:7   means the line can be divided into   2+7 = 9 segments

from   3 to -4   is    -7         2 out of 9 segments would be    -7 * 2/9 added to  3 = 13/9 = 1 4/9 = x

          6 to 3    is -3            2 out of 9 segments would be     -3 * 2/9 added to 6  = 5 1/3 = y

Here is a picture....   You are trying to find the green line distance   ( Hint: Cosine law)

F = ma

m_sa_s   = m_b a_b

a_s / a_b  =  m_b / m_s    =  150/200  = 3/4

Alan gives 1/2 away      he has 1/2 left

J   has 1/2 but gives 1/3 of this to k      j now has   2/3 * 1/2  = 1/3  left     and   k has 1/3 * 1/2 = 1/6