Answer:
1 : 4
Step-by-step explanation:
Let x represent the amount of 30% solution for 1 unit of 5% solution. Then the amount of acid in the mix is ...
0.30x + 0.05·1 = 0.10·(x +1)
0.30x + 0.05 = 0.10x + 0.10 . . . . eliminate parentheses
0.20x = 0.05 . . . . . . . . . . . . . . . . subtract 0.05+0.10x
x = 0.05/0.20 = 1/4
That is, the ratio x : 1 is 1 : 4.
Answer:
x=12
Step-by-step explanation:
Step 1: Subtract 7 from both sides.
Step 2: Multiply both sides by 4.
and you get x=12
Answer:
(2,-1)
4 over 3 on a gragh divided by the demonitar of the higher number equaled to 5 will get u (2,-1)
Step-by-step explanation:
Hopefully this helped, have a great day! :)