Answer:
I would say C.
Step-by-step explanation:
Answer:
x=6
Step-by-step explanation:
Answer:
m∠B = 31°
Step-by-step explanation:
First, find the measure of angle ACB by subtracting its supplement from 180 degrees:
180 - 113 = 77
m∠ACB = 77°
Then subtract both m∠A and m∠ACB from 180 degrees, since the interior angles of a triangle always add to 180°:
m∠B = 180° - 72° - 77°
m∠B = 31°
Answer:
7%*12=6%(12+x)
.84=.72+.06x
.06x=.12
x=2
how much water should be added to 12 mL of 7% alcohol to reduce concentration to 6%? 2 ML
Step-by-step explanation: