Answer:
32
Step-by-step explanation:
4 gallons = 25% alcohol
He wants 50% alcohol, therefore, let’s double the amount.
8 gallons = 50% alcohol
Answer is 4 more gallons should be added to have 50% alcohol
Answer:
Let's find the possible outcomes of rolling odd.
1,3,5 are all odd. We have 3 outcomes.
Now find the possible outcome of a power of 2.
2 is 21, 4 is 22. We have 2 DIFFERENT outcomes.
(If these outcomes overlapped, we would have to subtract to get unique outcomes. In this case, these outcomes are different)
Now, we find the total number of possible outcomes.
A dice has 6 different outcomes.
Now add up the desired outcomes, 3+2=5
and so the probability is 56
Step-by-step explanation:
For lines to be perpendicular to each other their slopes must be negative reciprocals of one another, mathematically:
m1*m2=-1
Since y=2x-1 has a slope of 2, our perpendicular line must have a slope of:
2m=-1, m=-1/2, so our perpendicular line will be of the form:
y=-x/2+b, using the point (-2,-2) we can solve for the y-intercept, or "b".
-2=--2/2+b
-2=1+b
b=-3, then our perpendicular line is:
y=-x/2-3 or more neatly
y=-0.5x-3
Answer:
Angle C=72º
Step-by-step explanation:
If two angles are congruent they are equals then angle A is 54º and angle B is 54º and the sum of the internal angles of a triangle is 180º then.
C=180º-54º-54º=72º
To know the value of on AC and BC we have to know the value of the other side AB, to find the values of the sides we can use the law of sines;
