Answer:
The correct option is 4.
Step-by-step explanation:
Given information:
Bring lunch : 46 males, 254 females
Buy lunch : 176 males, 264 females
Total number of peoples is
Total number of males is
The probability of male is
Since probability of males is 0.3, therefore options A and C are incorrect.
Total number of persons who buys lunch is
The probability of persons who buys lunch is
We need to find the probability of P(male | buys lunch).
According to the conditional probability, we get
P(male | buys lunch)
P(male | buys lunch)
P(male | buys lunch)
Therefore the correct option is 4.
Answer:
Step-by-step explanation:To square a fraction, you first square the numerator and then the denominator. Eg:
3/5 squared is 9/25.
Same Wise, to cube a fraction. Eg:
What is 2/3 cubed? 8/27
Answer: $3.75
Step-by-step explanation:
The amount that you would save is 5% of your monthly bill of $75.
This amount is:
= 75 * 5%
= $3.75
<em>The total amount that you would pay is:</em>
<em>= 75 - 3.75</em>
<em>= $71.25</em>
Hey there!
We know that perimeter is all the sides added up.
70= 2w+2L <== this is the basic equation
We know that the rectangles length is three times as long as it is wide.
So, you know that is is three times the length of the width. So, put 3 times w in as length and times that by two since there are two length sides, and keep width the same. 2w because there are two width sides. Then, solve.
70=2(3w)+2w
70= 6w+2w
70=8w
w=8.75
We can check this by plugging it in to our first equation and seeing if it works. First, we need to multiply 8.75 by 3 to get the value for length.
8.75*3= 26.25
2(26.25)+2(8.75)= 70 <=== it works!
So, the length is 26.25 cm and the width is 8.75 cm.
I hope this helps!
~kaikers
(a)6x-28=4x+18
2x=46
x=23
(b)75=11x-2
77=11x
7=x
(c)x+139=132
x=-7
