For quantity 50, the Z scores are ...
(50 -51.6)/1.3 ≈ -1.23 . . . . . . .company G
(50 -52.5)/1.8 ≈ -1.39 . . . . . . company H
Since the z-score from Company G is closer to zero than the z-score of Company H, the company that produced a package with 50 key rings in it is most likely Company G.
_____
The probability of exactly 50 key rings is higher the closer the z-score is to zero. The probability of at least 50 key rings is higher for lower z-scores. The way the problem's answer statement is worded, it appears the probability of interest is that of having exactly 50 key rings in the package.
Answer:
210
Step-by-step explanation:
first I took 120 and divided by four to show how many cupcakes he can make in thirty minutes (.5 of an hour). this was 30. the reason we divided by four is because in two hours theres four halves.
120÷4=30 for half an hour
30x2=60 this is how many cupcakes he can make in one hour
since we already know how many he makes in two hours we're going to use that
120+60=180 (three hours)
120+60=180 (three hours)180+30 (half an hour) =210
5p-8p=14+4
-3p=18
P=-6
Check it
5(-6)-14= 8(-6)+4
-30-14=-48+4
-44=-44
Answers
(1) a = 16 , (2) x =4 , (3) x = 0 ,(4) n =-20 , (5) r = 20 and (6) x = -11
Step-by-step explanation:
(1) 6 = a/4 + 2
4 = a/4 (It is because when you bring +2 over to the left it will become 6 -2)
a = 16 (it is because of the fraction, so when you bring the divisor over it becomes x 4)
The following questions same as qns 1 too
(2) -6 + x/4 = -5
x/4 = 1
x = 4
(3) 9x -7 = -7
9x = 0
x = 0
(4) 0 = 4 + n/5
-4 = n/5
n = -20
(5) -4 = r/20 -5
1 = r/20
20 = r
(6) -1 = 5 + x/6
-6 = 5 + x
-11 = x
