Answer:
answer) 7/6
Step-by-step explanation:
10x- 15 = 4x-8
10x- 4x= -8+15
6x= 7
x= 7/6
hope it was useful for you
stay at home stay safe
pls mark me as BRAINLIEST
I HAVE TRIED MY BEST
We know that
The Intersecting Chord Theorem, established that "<span>When two chords intersect each other inside a circle, the products of their segments are equal."
</span>so
(n+2)*16=(n+8)*8
16n+32=8n+64
16n-8n=64-32
8n=32
n=32/8
n=4
the answer is
n=4
Q - r = r
Flip
r = Q - r
Add r to both sides
2r = Q
Divide both sides by 2
r = Q/2
Have an awesome day! :)
Answer:
53%
Step-by-step explanation:
use formula: (new value - original value) / original value and you will get .533 which rounds to 53%
Let 
be the number of liters of the 10% solution to be used, and 
the number of liters of the 4% solution. The chemist wants to end up with a 4 liter solution, so
For each liter used in the mixture, a concentration of either 10% or 4% acid will be contributed, and the goal is to make a 4L solution whose concentration is 7%, which means
Solving for 
gives 
, so 2L of both solutions is needed.
