Answer:
water : 90 ounces
salt solution: 90 ounces
Step-by-step explanation:
Call w the amount of water and call the solution containing 30% salt.
We want to get 180 ounces of a mixture with 15% salt.
So:
The amount of mixture will be:
the amount of salt will be
Now we substitute the value of s in the first equation and solve for w
Answer:
JL = 56
NK = 28
Step-by-step explanation:
Since JL = MK
5x + 1 = 8x - 32
8x - 5x = 32 + 1
3x = 33
x = 11
so
JL = 5x + 1 = 5(11) + 1 = 55 + 1 = 56
NK = 1/2MK = 1/2JL = 56/2 = 28
Answer:
34.75x
Step-by-step explanation:
Answer:
y = 6
x = 2
Step-by-step explanation:
rearrange the first equation in terms of x
x = (y - 2)/2
substiute x in the second equation
y = -5[(y-2)/2] +16
Now simpilify and solve for y
y = (-5y + 10)/2 +16
y = -5/2y + 5 + 16
y + 5/2y = 5 + 16
3.5y = 21
y = 6
Now substitue y in the first equation to solve for x
x = (6 - 2)/2
x = 2
Answer:
B. 30
Step-by-step explanation:
First, you multiply by 5 from both sides of equation.
Simplify, to find the answer.
, which is our answer.
