Step-by-step explanation: In this problem we have four consecutive even integers that have a sum of -52. Consecutive even integers can be represented as followed.
X
X + 2
X + 4
X + 6
Since the sum of these is -52, we can set up an equation to represent this.
X + X + 2 + X + 4 + X + 6 = -52
4x + 12 = -52
4x = -64
X = -16
X + 2 = -14
X + 4 = -12
X + 6 = -10
Answer:
-16,-14,-12,-10
Step-by-step explanation:
Let the integers be x, x+2,x+4,x+6
ATQ,
x+x+2+x+4+x+6=-52
4x+12=-52
4x=-52-12
x=-64/4
x=-16
25.35
B.
60
C.
166.7
D.
2535
A. f=877
B. f=1,565
C. f=867
D. f=1,575
add 354 to both sides
Based on the number of customers from last week, the fraction is closest to the probability that the next customer will pay with cash is 54/249
Suppose population is wide and you cannot evaluate all the population at once. Then you do sampling of large enough size randomly. The mean of that sample will be then the estimate for the mean that population will pertain.
Experimental probability calculates the probability of some event from the results of experiments.
For an event E, we get the experimental probability of that event
where, is denoting experimental probability of occurrence of E.
Here, the customers are not all known to us, they are population.
But we have some data of the previous customer. Taking them as the sample, we have:
Experimental probability of an event from sample = Predicted probability for that event in population.
For this case, from the previous data, we have:
Total customers who paid = 153 + 42 + 54 = 249
Total customers who paid with cash = 54
Thus, if we take:
E = event that a customer pays with cash, then:
This is the probability deduced from the previous data that the next customer will pay with cash.
Thus, based on the number of customers from last week, the fraction is closest to the probability that the next customer will pay with cash is 54/249
Learn more about probability here:
Answer:
Adrian must work at least 8 hours in a day to make more than $260
Explanation:
Assume that Adrian needs to work x hours in one day to make at least $260
We know that she makes $42 per hour
This means that:
If she worked x hours in a day, then she'll earn $42x
We are also given that she spends $75 daily on dry clean
This means that:
Amount she makes in a day = amount she earns - $75
Amount she makes in a day = 42x - 75
Now, she wants to make at least $260
This means that:
42x - 75 ≥ 260
42x > 260 + 75
42x > 335
x > 7.9
Therefore:
Adrian must work at least 8 hours in a day to make more than $260
Hope this helps :)