Answer:
x=5/2, -4.
Step-by-step explanation:
3(2x-5)(x+4)=0
(2x-5)(x+4)=0/3
(2x-5)(x+4)=0
2x-5=0, x+4=0
2x=0+5,
2x=5,
x=5/2,
x+4=0
x=0-4=-4
Answer:
Y = 2/3x + 1
Step-by-step explanation:
The slope (rise / run) is 2/3 and the y-intercept is 1.
Hope this helps. Pls give brainliest.
The correct answer is "B". 'Two show the congruence of two triangles, only two angles at most need to be shown.' If you know 2 angles as congruent or equal, you can figure out the third one. It will always be the same. All of a triangles' angles' add up to 180 degrees.
I hope this helped you!
Brainliest answer is always appreciated!
Let 'a' be the number of ounces of 2%-solution in the 25-ounce mixture
and 'b' be the number of ounces of 5%-solution in the 25-ounce mixture.
Since, fluid ounces of each concentration should be combined to make 25 fl oz.
So, a+b=25 (Equation 1)
And, a container of 2% acid solution and a container of 5% acid solution should be combined to make 25 fl oz of 3.2% acid solution.
So, a of 2% + b of 5% = 3.2% of 25
Multiplying the above equation by 100, we get
(Equation 2)
Substituting the value of a=25-b in equation 2, we get
Since, a=25-b
a= 25-10
a=15.
So, 15 fluid ounces of 2% solution combined with 10 ounces of the 5% solution to create a 25-ounce mixture at 3.2% concentration of acid.