Answer: <em>ok so if 60% is under 25 then we can assume 40% is over 25, and then do 40% of 450,000, which is 180,000 .</em>
<em>so we can say that 180,000 people in the town are over 25 years old</em>
Answer:
19 we kno
Step-by-step explanation:
we know each card is 1/3 of a mm as 81 times 1/3 is equal to 27 so simply divide your friends cards by 3 to find out the total
Answer:
12. 
13. 9√2
Step-by-step explanation:
12. 4√3-√12+√18
4√3-2√3+√18
2√3+√18
13.(2√12-3√1/3)√6
(4√3 - 3√(1/3))√6
4√18 - 3√(6/3)
12√2-3√2
9√2
Answer: 1/257300
Step-by-step explanation:
Let S= total number of sample space
Let D= defective parts
Let ND= Non- defective parts
Let Pr(D) = probability of defective parts in the box
Let Pr(ND) = PROBABILITY OF non-defective parts
S= 250
D = 5
ND= 250 – 5
= 245
Pr(D) =5/250
= 1/50
Pr(ND) = 245/250
= 49/50
The probability of picking 3 parts that will be defective without replacement is
Pr(D₁) n Pr(D₂) n Pr(D₃)
Pr(D₁) = 5/250
Pr(D₂) = 4/249
Pr(D₃) = 3/248
= 5/250 × 4/249 × 3/248
= 60/15438000
= 1/257300
