You would need to add water. The amount required is entirely dependent on how much volume you currently have. If the current volume is x then the question can be rewritten as: 10%x/(x+a) = 1% where a is the amount of water you need to add. Multiply both sides by x+a and you get 10%x = 1%x + 1%a Subtract 1%x from both sides and get 9%x = 1%a Divide by 1% and you get 9x = a Thus, to make a 1 percent solution from a 10 percent solution, you need to add 9 times the current volume of the solution in water.
1/5 + 1/5 + 1/10 need common denominator to add fractions; 10 looks good and 1/5 = 2/10 2/10 + 2/10 + 1/10 = 5/10 which is........... = 1/2
You need to add 7 (or +7)
You add 10 to -7 to get 3.
17
you need to add 3/10 to 7/10 to get 10/10 or 1.
10
11
You need to add 18 to negative 8 to get 10.
you need to add 10
yes
your expression is this... x + -10 = 2 x = 12 You need a 12 to add to -10 to get 2
-10 + 20 = 10 because you need 10 to get 0 and 10 more to get +10
15-10 = 5
10 - (-9) = 19
10 percentto1.07=0.107 add this to 1.07 then the value=1.177
You add 10 to -7 to get 3.