Total coins=46 There are 10 dimes, so it is 10/46. If you reduce it the answer is 5/23. That is not one of the visible options, but there is no option for B so I could be right!
I think it’s b.5. Hope this helps. :)
Answer:
i dont know how many did she read?
Step-by-step explanation:
sorry you didn't really give me an problem to solve
How to solve it (example) ⬇️
The perimeter of a triangle is 34 inches. The middle side is twicw as long as the shortest side. The longest side is 2 inches less than three times the shortest side. What are the lengths of the three
You can put this solution on YOUR website!
let the sides of triangles be a, b, & c ; where c is the shortest side, a is the longest side and b is the middle side .
given perimeter of triangle = 34 inches
i.e. a + b + c = 34
given middle side is twice long as shortest side i.e. b = 2 x c = 2c .......(1)
given longest side is 2 inches less than three times shortest side
i.e. a = 3x c - 2 = 3c -2 .......... (2)
substituting (1) & (2) in equation a + b + c = 34
we get, 3c-2 + 2c + c = 34
3c+ 2c+ c -2 =34
6c -2 = 34
6c = 34 + 2 = 36
c = 36/ 6 = 6
a= 3c - 2
= (3 x 6) - 2
= 18- 2 = 16.
b = 2c = 2 x 6 = 12
so three sides of the triangle are 16 inches, 12 inches & 6 inches
Answer:
(a)0.0005
(b)0.2720
Step-by-step explanation:
Total Number of Transistors = 16
To find the probability that 4 selected at random are defective (or non-defective), we find the probability of the 1st, 2nd, 3rd, and 4th defective (or non-defective) items in that order, Note that the selection is without replacement.
(a)Probability that all are defective
Number of Defective Transistors =4
P(all are defective) ![=\dfrac{4}{16} \times \dfrac{3}{15} \times \dfrac{2}{14} \times \dfrac{1}{13}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B4%7D%7B16%7D%20%5Ctimes%20%5Cdfrac%7B3%7D%7B15%7D%20%5Ctimes%20%5Cdfrac%7B2%7D%7B14%7D%20%5Ctimes%20%5Cdfrac%7B1%7D%7B13%7D)
=0.0005
(b)Probability that none are defective
Number of Non-Defective Transistors =16-4=12
P(none are defective) ![=\dfrac{12}{16} \times \dfrac{11}{15} \times \dfrac{10}{14} \times \dfrac{9}{13}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B12%7D%7B16%7D%20%5Ctimes%20%5Cdfrac%7B11%7D%7B15%7D%20%5Ctimes%20%5Cdfrac%7B10%7D%7B14%7D%20%5Ctimes%20%5Cdfrac%7B9%7D%7B13%7D)
=0.2720