Question 1038954
0.45 = 250
0.10 = x
Inverse proportion:
C1/C2 = Q2/Q1
where C is Concentration and Q is quantity. And the unknown quantity Q2 I am going to call x:
0.45/0.10 = x/250
4.5 = x/250 multiply both sides by 250:
1125 = x flip it, it looks better:
x = 1125 grams you will add to dilute the solution to 10%