4 cups of pecans = 5 cups of walnuts
x cups of pecans = 8 cups of walnuts
CROSS MULTIPLY
4*8 =5x
5x = 32
DIVIDE BOTH SIDES BY 5
5x/5 = 32/5
x=6.4
Therefore, 6.4 cups of pecans would be added to 8 cups of walnuts
Answer:
120° & 240° (given the angles are between 0° and 360°)
Step-by-step explanation:
We want to find .
This means we want to know the angle(s) for which cosine has a value of .
The basic acute angle that has a cosine of is 60°. But we want to know NEGATIVE . So in which quadrants is cosine negative? Second and Third
- The rule to find 2nd quadrant angle with known acute angle is: 180 - α
- The rule to find 3rd quadrant angle with known acute angle is: 180 + α
Where α is the basic acute angle (in our case it is 60°)
So 2nd quadrant angle is 180 - 60 = 120°
and 3rd quadrant angle is 180 + 60 = 240°
Answer:
x=2
Step-by-step explanation:
x-3=4x-9
x=4x-6
-3x=-6
x=2
Answer:
40
Step-by-step explanation:
40:2 (half of) = 20
20+16=36
So, angles A and B added together is 130° which makes the whole angle = 180°-130°=50°
The answer is 180° because it is a supplementary angle and all supplementary angles equal 180° so, all the angles added makes 180°