Answer:
5:3
Step-by-step explanation:
Given that the chemist mixed 5 mL of Solution A with every 3 mL of Solution B to make a new solution with a new concentration.
So, the amount of Solution A in the mixture, a = 5 mL
The amount of Solution B in the mixture, b = 3 mL
Therefore, the ratio of Solution A to Solution B in the new solution with the same concentration is a:b=5:3.
Hence, the required ratio for the same concentration is 5:3.
Please note that none of the given options matched.
a bus took 30
minutes-------------------------- to cover a distance of 20 city blocks<span>
X
minutes------------------------------------------------one (1) city block</span>
I apply a rule of three
<span>
X=(1)*(30)/20=1.5 </span>
Therefore
the bus moved
1.5 minutes/block city
<span> </span>
Among many other formulas, the area of a triangle is

where B is the angle between sides a and c.

Answer: 92.05 sq cm, first choice
Bonus. Here's a formula for the area S of a triangle your teacher doesn't know:

Answer:
n = 39
Step-by-step explanation:
The base angles are congruent, that is
3n = 117 ( divide both sides by 3 )
n = 39
330 mm is equivalent to 0.33 m