Answer:
n = 1
Step-by-step explanation:
2n-10 = -8
Then add 10 to both sides
2n = 2
Divide both sides by two
n = 1
Answer:
1.953125 is the answer I believe
or 125/64
or 1 61/64
Answer:
Amount of acid = 55.1 mm (Approx)
Step-by-step explanation:
Given:
Amount of solution = 336 mm
Percentage of acid = 16.4%
Find:
Amount of acid
Computation:
Amount of acid = Amount of solution x Percentage of acid
Amount of acid = 336 x 16.4%
Amount of acid = 55.1 mm (Approx)
5x-9y=-65
10x-3y=20
Multiple the first equation by 2
10x-18y=-130
10x -3y=20
Then subtract the two equations to get rid of the x
21y=-150
Divide the -150 by 21
Y=-7.14
Plug the y into the original equation. (Either one)
5x-9(-7.14)=-65
5x-64.28=-65
Then add 64.28 to the -65
5x=-0.72
Divide by 5
X=-0.144
I hope this is right
