Answer: 11
Because if you minus 11 from both brown eyes and black hair your left with 8 from black hair and 3 from brown eyes
She worked as a carpenter for 12 hours and as a blacksmith for 18 hours.
Assuming you mean she earned $20 as a carpenter and $25 as a blacksmith per hour, with a total of 30 hours for $690,
let c represent carpenter hours and b for blacksmith hours.
20c + 25b = 690
c + b = 30
Subtract b from each side so that c = 30 - b
Plug this value into the first equation
20(30 - b) + 25b = 690
600 - 20b + 25b = 690
600 + 5b = 690
5b = 90
b = 18
To find c, plug this value of b into the other equation
c + 18 = 30
c = 12
Drops = 27
First, we need to find the volume of the given tank using the following equation

Now that we know the volume, we need to find out how many drops that we need to use. We can find that out using the following equation

Answer=46.43
39 84
___=____
x 100
cross multiply
84x=3900
divide both sides by 84
x=46.43
Answer: tangent
Step-by-step explanation: from the diagram the adjacent and the opposite are given. From SOHCAHTOA , tan is the only trig ratio with opposite and adjacent.
Thus tan teta= opposite÷adjacent
tan teta= 3÷6= 0.5
teta=tan invers of 0.5
=26.6°