Answer:
61.25%
Step-by-step explanation:
How many ml of 20 percent acid should be added to pure acid
to make 70 ml of 30 percent acid?
:
let x = amt of 20% mixture
then
(70-x) = amt of pure acid
:
0.20x + (70-x) =0 .30(70)
0.20x + 70 - x = 21
= 21 - 70
-0.8x =-49
x = 61.25%
x = +61.25 ml of 20% stuff
Answer:
X is < 8
Step-by-step explanation:
if y is >0 , then obviously X has to be smaller than 8 otherwise X+y won't be equal to 8
This is how you would graph it
hope this helps :3
the image is below by the way X3
Answer:
multiply the numbers at the top
