Answer:
2.5 gallons of the 20% solution must be replaced by the 36% solution.
Step-by-step explanation:
Answer:
12-14=-2 ***"""""""""""""""
Step-by-step explanation:
<h3>12-14=-2</h3>
Answer:
(-5, 2) and (2, 6)
Step-by-step explanation:
Use the substitution method. We know that y = 3x and y = x^2 - 10, so we can set them equal to one another.
3x = x^2 - 10
x^2 - 3x - 10 = 0
Use the quadratic equation to solve for x.
x = - 5, 2
Now solve for y using these two values of x by substituting it back into the equations.
y = - 15, 6
In coordinate form, (-5, 2) and (2, 6)
