The only thing we need to here to find who is correct is evaluate the function
at
. To do that we are going to replace
with
in the function:
We can conclude that Lynn is correct.
is indeed 14.
Answer:
6/4y - 12 = 1/2y -4
3/2y -12 = 1/2y - 4
-1/2y -1/2y
2/2y - 12 = -4 (2/2 = 1)
y - 12 = -4
+12 +12
y = 8
Step-by-step explanation:
Let x be the volume (liters) of pure (at 100%) acid needed
Let y be the volume (liters) of the other acid (at 10%) needed
The final solution will be:
a) x+ y = 63 liters, AND their respective concentration in acid: is
100% x & 10% :y that will generate 63 liters at 20%
b) x +0.1 y = 63x 0.2 = 12.6
Let's solve this system of 2 equations:
x + y =63
x + 0.1 y = 12.6
Solving it will give you:
x= 7 liters at 100%
y = 56 liters at 10%
K=10
Here is the equation
180-115=65
(4K+5)+(6k+10)+65=180
Answer:
15
Step-by-step explanation:
Hope this helps
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