Step-by-step explanation:
If x is the volume of pure water:
Initial + added = final
0.95 (840) + 0 (x) = 0.70 (840 + x)
798 = 588 + 0.70 x
x = 300
840 + x = 1140
You need to add 300 mL of pure water to obtain 1140 mL of the desired 70% solution.
Answer:3.25
Step-by-step explanation:
30-17=13 13 divied by 4 = 3.25
Answer:
D. -2 ≤ y ≤ 3
Step-by-step explanation:
This is because range is based on y-values and so the lowest y-value here is -2 and the greatest one is 3, inclusive.
Answer:
Step-by-step explanation:
Given
Required
Determine the inequality that represents the third side
Represent the third side with x.
For the triangle to be true, two of the following condition must be true.
-- True
-- True
--- False; Because, x can't be negative.
So, we have:
and
This can be combined to give:
or