Answer:
what does that mean
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
6(2b - 4)
~Substitute
6(2(5) - 4)
~Simplify
6(10 - 4)
~Subtract in parenthesis
6(6)
~Multiply
36
Best of Luck!
Let x = volume of saline solution A,
y = volume of saline solution B.
We're going to set up two equations.
Firstly, x + y = 6. That gives us y = 6 – x (1)
Second, 0.1x + 0.05y = 0.08•6,
or 0.1x + 0.05y = 0.48 (2)
Substitute (1) into (2):
0.1x + 0.05(6 – x) = 0.48
0.1x + 0.3 – 0.05x = 0.48
0.05x + 0.3 = 0.48
Subtract 0.3 from both sides:
0.05x = 0.18
x = 3.6
Then y = 6 – 3.6 = 2.4
So we have to use 3.6 litres of solution A and 2.4 litres of solution B.
