Answer:
- P(Yellow)=0.25
- P(Not Red)=0.65
Step-by-step explanation:
P(Red)=0.35
P(Green)=0.4
(a)Since there are three colours inside the bag
P(Red)+P(Green)+P(Yellow)=1
0.35+0.4+P(Yellow)=1
P(Yellow)=1-(0.35+0.4)
P(Yellow)=0.25
(b) In probability, the sum of an event and its complement is 1.
Therefore:
P(Red)+P(Not Red)=1
0.35+P(Not Red)=1
P(Not Red)=1-0.35
P(Not Red)=0.65
B. Because 20 is greter than 18.
Answer:
o = 54
Step-by-step explanation:
The angle sum theorem tells you the sum of angles in a triangle is 180°. The definition of a linear pair tells you the two angles of a linear pair total 180°. Together, these relations tell you that an exterior angle of a triangle is equal to the sum of the remote interior angles.
In this geometry, the angle marked 78° is exterior to the left-side triangle. That means ...
78° = o° +24°
o° = 78° -24° = 54°
The value of 'o' is 54.
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<em>Additional comment</em>
n° is the supplement of 78°, so is 102°.
m° is the difference between 102° and 22°, so is 80°.
Well in my calculations I got: well if you he increases the speed by 2.6 per hour soo 4+2.6=6.6
Answer:
<em>The greatest number of song he can practice in a week is 2.</em>
Step-by-step explanation:
Suppose, the greatest number of song he can practice in a week is ![x](https://tex.z-dn.net/?f=x)
He practices each song for
hours. So, the total time required for practicing
number of songs
hours.
Given that, he practices his guitar for 9 hours each week.
So, the equation will be......
![3\frac{1}{2}*x= 9\\ \\ x= 9\div 3\frac{1}{2}\\ \\ x=9\div \frac{7}{2}=9 \times \frac{2}{7}=\frac{18}{7}= 2.571.... \approx 2](https://tex.z-dn.net/?f=3%5Cfrac%7B1%7D%7B2%7D%2Ax%3D%209%5C%5C%20%5C%5C%20x%3D%209%5Cdiv%203%5Cfrac%7B1%7D%7B2%7D%5C%5C%20%5C%5C%20x%3D9%5Cdiv%20%5Cfrac%7B7%7D%7B2%7D%3D9%20%5Ctimes%20%5Cfrac%7B2%7D%7B7%7D%3D%5Cfrac%7B18%7D%7B7%7D%3D%202.571....%20%5Capprox%202)
<em>(Rounded as the greatest whole number)</em>
Thus, the greatest number of song he can practice in a week is 2.