ElectricPavlov

200 000 / 800 000    x 100% = 25 % increase

Welcome !!

x        x+1       x+2        x+3     are the integers

3 ( x +  x+3)   = -5 ( x   +   x+1)   - 114       solve for x

6x + 9 = -10x -5 - 114

16x = - 128

x = -8

-8     -7     -6     -5     

150 + two right angles + x = 360

150 + 90 + 90 + x = 360       

make 2x+1 the middle-ish integer   the two below will be  2x -1   and 2x -3     above will be 2x +3 

2x -3     2x-1     2x+1      2x+3 

5 ( 2x-3  + 2x+1)   = 22 +  (2x-1)(2x+3)  + (2x-1 + 2x+3)   solve for 'x'

5 ( 4x-2)   = 22 + ( 4x^2 +4x-3) + (4x+2)

20x-10      = 22  + 4x^2 +8x -1

0    =    4x^2 - 12x +31                       x = hmmmmmmmm     non integer

can you clarify this part?  ' 22 greater than the product of and the sum of the second and the fourth'

180 m / 10 hr   = 18 m/hr

180 m / 5 hr = 36 m/hr            ( 18 +36 )/2 = 27    speed of boat         9 = current

https://web2.0calc.com/questions/help_90245

8y2 / 3x

40 miles/1/2 hr  = 80 m/hr

40 miles/1/3 hr = 120 m/hr              airplane speed = 100    wind = 20 m/hr

192 x^2 = 16

192 = 16/x^2

192/16 = 1/x^2

12 = 1/x^2                square both sides

144 = 1/x^4