Hought of a number, added 5, multiplied the result by 2, took away 6 and then divided by 2 to give an answer of 8. what number did albert think of to get his answer

6

Explanation:

x = the number

 [( x + 5 ) x 2 - 6 ] ÷ 2= 8

 ( x + 5 ) x 2 - 6   = 16         ║ mutlitply by 2

 ( x + 5 ) x 2  = 22               ║ mimus 6

   x + 5  = 11 .                        ║ divide by 2

   x  = 6                                 ║ minus 5

56 ur welcome:

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post