Below are the choices:
A. 80 mL of the 3.5% solution and 120 mL of the 6% solution
<span>B. 120 mL of the 3.5% solution and 80 mL of the 6% solution </span>
<span>C. 140 mL of the 3.5% solution and 60 mL of the 6% solution </span>
<span>D. 120 mL of the 3.5% solution and 80 mL of the 6% solution
</span>
Let fraction of 3.5% in final solution be p.
<span>p * 3.5 + (1 - p) * 6 = 4.5 </span>
<span>3.5p + 6 - 6p = 4.5 </span>
<span>2.5p = 1.5 </span>
<span>p = 3/5 </span>
<span>3/5 * 200 = 120 </span>
<span>Therefore the answer is B. 120 ml of 3.5% and 80 ml of 6%.</span>
Answer:
The area of a circle = 314 sq. ft
Step-by-step explanation:
Given:
Radius = 10 ft
pi = 3.14
To Find:
The area of a circle = ?
Solution:
A = pi x r^2
A = 3.14 x (10)^2
A = 3.14 x 100
A = 314 sq. ft
Therefore,
The area of a circle = 314 sq. ft
PLEASE MARK ME AS BRAINLIEST!!!
Answer:
Yes, because m<UVW is congruent with m<XVY and m<VUW is congruent with m<VXY
Step-by-step explanation:
we know that
If two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding angles are equal
In this problem
m<VXY=m<VUW ------> by corresponding angles
m<XVY=m<UVW -----> is the same angle
therefore
m<XYV=m<UWV -------> because the sum of the interior angles in a triangle must be equal to 180 degrees
therefore
Triangles VUW and VXY are similar by AA Similarity Postulate------> The three internal angles are congruent
